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PubMed2006

How much does pre-trial testing influence complex intervention trials and would more testing make any difference? An email survey.

BACKGROUND: The UK Medical Research Council has proposed that complex interventions should be tested in exploratory trials prior to a full-scale trial so as to better define the intervention and test the feasibility of components such as recruitment. It is not clear to what extent this is being done. This study aimed to determine to what extent complex interventions are tested prior to a full-scale trial and whether more or different testing would have led to a different intervention being used in the trial. METHODS: Email survey of the authors of complex intervention trials published in seven major journals in 2004. RESULTS: 72% (50/69) of eligible authors replied. Eight authors did not consider their interventions to be complex. The majority of respondents' complex interventions were tested (34/42): some extensively. Conversely, only 17 of the 34 published reports describing these trials mention testing. Two-thirds (22/34) of those testing their interventions did not believe that more or different testing would have produced a more effective intervention. 31% (13/42) of all authors did believe further testing would have led to improvements. Five respondents mentioned a lack of funding as a reason for not doing more testing. CONCLUSION: Complex interventions are generally tested prior to their evaluation in a full-scale trial, although the amount of testing varies. Testing is often not described in trial reports, which makes it hard to judge whether a trial result could be improved with a better intervention, or whether further work with a different intervention is required.

Attitude of Health Personnel↗
PubMed2004

Audit of therapeutic interventions in inpatient children using two scores: are they evidence-based in developing countries?

BACKGROUND: The evidence base of clinical interventions in paediatric hospitals of developing countries has not been formally assessed. We performed this study to determine the proportion of evidence-based therapeutic interventions in a paediatric referral hospital of a developing country METHODS: The medical records of 167 patients admitted in one-month period were revised. Primary diagnosis and primary therapeutic interventions were determined for each patient. A systematic search was performed to assess the level of evidence for each intervention. Therapeutic interventions were classified using the Ellis score and the Oxford Centre for Evidence Based Medicine Levels of Evidence RESULTS: Any dehydration due to diarrhoea (59 cases) and pneumonia (42 cases) were the most frequent diagnoses. Based on Ellis score, level I evidence supported the primary therapeutic intervention in 21%, level II in 73% and level III in 6% cases. Using the Oxford classification 16%, 8%, 1% and 75% therapeutic interventions corresponded to grades A, B, C, and D recommendations, respectively. Overall, according to Ellis score, 94% interventions were evidence based. However, out of the total, 75% interventions were based on expert opinion or basic sciences. Most children with mild to moderate dehydration (52 cases) were inappropriately treated with slow intravenous fluids, and most children with non-complicated community acquired pneumonia (42 cases) received intravenous antibiotics CONCLUSIONS: Most interventions were inappropriate, despite the availability of effective therapy for several of them. Diarrhoeal dehydration and community acquired pneumonia were the most common diagnoses and were inappropriately managed. Existing effective interventions for dehydration and pneumonia need to be put into practice at referral hospitals of developing countries. For the remaining problems, there is the need to conduct appropriate clinical studies. Caution must be taken when assigning the level of evidence supporting therapeutic interventions, as commonly used classifications may be misleading.

Child↗
PubMed2004

Nutritional care of Danish medical inpatients: effect on dietary intake and the occupational groups' perspectives of intervention.

BACKGROUND: Many patients do not eat and drink sufficiently during hospitalisation. The clinical consequences of this under nutrition include lassitude, an increased risk of complications and prolonged convalescence. The aim of the study was 1) to introduce intervention targeting nutritional care for medical inpatients, 2) to investigate the effect of this intervention, and 3) to investigate the occupational groups' attitudes towards nutritional intervention and nutritional care in general. METHODS: The design was to determinate the extent to which the protein and energy requirements of medical inpatients were met before and after intervention. Dietary protein and energy intakes were assessed by 72-hour weighed food records. A total number of 108 medical patients at four bed sections and occupational groups in the two intervention bed sections, Aarhus University Hospital, Denmark participated. The intervention included introduction and implementation of nursing procedures targeting nutritional care during a five-month investigation period using standard food produced at the hospital. The effect of intervention for independent groups of patients were tested by one-way analysis of variance. After the intervention occupational groups were interviewed in focus groups. RESULTS: Before the intervention hospital food on average met 72% of the patients' protein requirement and 85% of their energy requirement. After intervention hospital food satisfied 85% of the protein and 103% of the energy requirements of 14 patients in one intervention section and 56% of the protein and 76% of the energy requirement of 17 patients in the other intervention section. Hospital food satisfied 61% of the protein and 75% of the energy requirement in a total of 29 controls. From the occupational groups' point of view lack of time, lack of access to food, and lack of knowledge of nutritional care for patients were identified as barriers to better integration of nutritional care into the overall care provision. CONCLUSION: There was ample room for improving the extent to which standard hospital food satisfies patients' protein and energy requirements, but implementation of procedures addressing nutritional care were difficult, especially at bed sections with a large staff turnover.

Journal Article↗
PubMed2006

What interventions should pharmacists employ to impact health practitioners' prescribing practices?

OBJECTIVE: To determine which interventions are effective in influencing health practitioners' prescribing practices and explore differences in intervention complexity, setting, sustainability, cost effectiveness, and impact on patient outcomes. METHODS: A systematic search for English-language systematic reviews was performed in MEDLINE, Cumulative Index of Nursing and Allied Health Literature, EMBASE, and the Cochrane Library from the date of inception to July 2005 using search terms in accordance with Cochrane recommendations. Included reviews were required to clearly report a search strategy, inclusion/exclusion criteria, literature assessment criteria, and methods for synthesizing or summarizing information and references. Two reviewers independently identified studies for inclusion, assessed study quality, and extracted relevant information. Interventions were classified as consistently effective, inconsistently effective, and effectiveness uncertain. RESULTS: Thirty-four of 4585 titles reviewed met the inclusion criteria. Quality scores ranged from 70% to 100%. Consistently effective interventions included reminders (manual and computerized), audit and feedback, educational outreach visits, organizational strategies, and patient-mediated interventions. Inconsistently effective interventions included computer decision support systems and educational meetings. Multi-faceted interventions were consistently shown to be more efficacious than single interventions. Limited data precluded exploration of the effects of interventions in different settings, sustainability of effect, cost effectiveness, and patient clinical outcomes. CONCLUSIONS: Interventions that are most effective for impacting prescribing practice include audit and feedback, reminders, educational outreach visits, and patient-mediated interventions. To maximize impact, pharmacists' efforts to positively impact prescribing practices should focus on these intervention types rather than relying primarily on passive didactics or dissemination of guidelines.

Drug Prescriptions↗
PubMed2001

Assessing the differential impact of an hiv prevention intervention: who's putting the message into practice?

Recent data suggest that educational interventions aimed at reducing HIV risk behaviors have shown some success. Nonetheless, HIV risk behaviors are not always reduced by interventions and probably do not reduce risk behavior randomly. That is, the success of interventions may be related to participant characteristics. Identifying participant characteristics related to both intervention completion and reduction in risk behaviors may be useful for further developing explanatory models of health behavior and for targeting and customizing interventions. In this study differences between participants who completed an AIDS educational intervention (N = 741) and those who did not complete the intervention are first examined (N = 652) and then variables related to reducing drug and sexual risk behaviors among those who completed the intervention and follow-up interviews are examined. Results show that the majority of respondents report decreasing five out of six risk behaviors, with the smallest percentage (48.8%) decreasing rates of unprotected sex and the largest percentage (83.4%) decreasing frequency of drug injection. Different variables were found to be related to changes in the various risk behaviors. However, some relatively consistent results emerge. For all risk variables, the frequency of the specific behavior at baseline predicted the amount of change in that behavior, with those having higher levels of risk behaviors reducing their behavior the most. Positive HIV test results significantly decreased three of the four sexual risk behaviors examined, and living in a very rural area was found to be significantly related to three of the six risk behaviors. However, perceived chance of getting AIDS did not significantly reduce any of the risk behaviors. Gender and education level were also not related to changes in any of the risk behaviors. Implications include the importance of developing approaches to retain higher proportions of younger participants, males and homeless in interventions. It is particularly important to develop specific approaches to retain women in interventions. Because very rural participants were more likely to decrease crack use and alcohol or drug use with sex, rural interventions should target these behaviors at the outset of the intervention.

Adult↗
PubMed2006

Relative efficacy of a multisession sexual risk-reduction intervention for young men released from prisons in 4 states.

OBJECTIVES: We compared the effects of an enhanced multisession intervention with a single-session intervention on the sexual risk behavior of young men released from prison. METHODS: Young men, aged 18 to 29 years, were recruited from US prisons in 4 states and systematically assigned to the prerelease single-session intervention or the pre- and postrelease enhanced intervention. Both interventions addressed HIV, hepatitis, and other sexually transmitted infections; the enhanced intervention also addressed community reentry needs (e.g., housing, employment). Assessment data were collected before intervention, and 1, 12, and 24 weeks after release. RESULTS: A total of 522 men were included in intent-to-treat analyses. Follow-up rates ranged from 76% to 87%. Unprotected vaginal or anal sex during the 90 days before incarceration was reported by 86% of men in the enhanced intervention and 89% in the single-session intervention (OR=0.78; 95% CI=0.46, 1.32). At 24 weeks, 68% of men assigned to the enhanced intervention reported unprotected vaginal or anal sex compared with 78% of those assigned to the single-session intervention (OR=0.40; 95% CI=0.18, 0.88). CONCLUSION: Project START demonstrated the efficacy of a sexual risk-reduction intervention that bridges incarceration and community reentry.

Adolescent↗
PubMed2001

Management of acute coronary syndromes in the community hospital without cardiac surgical capability: how can access to interventional therapy be improved?

Early coronary artery intervention is emerging as the treatment of choice for patients with high risk acute coronary syndromes (ACS). However, most patients with ACS are admitted to hospitals which do not have ready access to interventional therapy. Extending the benefits of early intervention to this population is problematic at such community hospitals, since this approach would require either emergency transfer to a tertiary center or the performance of angioplasty on-site at hospitals without cardiac surgical capability. A third solution, pre-hospital ambulance triage to interventional centers, is not currently practised in most countries. A growing body of evidence indicates that hospitals without cardiac surgical capability can establish safe and effective primary angioplasty programs. Patients with acute myocardial infarction (AMI) who are randomized to transfer for primary angioplasty without fibrinolytic treatment have fewer major adverse cardiac events than those treated with fibrinolytics alone or fibrinolytics and transfer. In patients with unstable angina (UA) or non-ST-elevation AMI, an early aggressive approach led to a significant reduction in the composite end-point of death, AMI, or rehospitalization for recurrent UA at 6 months with no increase in cost, compared with conservative management. Ongoing trials in Europe indicate that pre-hospital ambulance triage of patients with large AMI to interventional centers can be remarkably rapid, safe, and effective. In order to improve the access of such patients to early intervention, 3 interdependent solutions are proposed:The development of more interventional programs at those hospitals without cardiac surgical facilities that can meet rigorous standards. The development of protocols to insure the early and more frequent transfer of patients with high-risk ACS to interventional centers for coronary angiography and revascularization. The pre-hospital triage of patients with AMI to established heart attack centers with 24-hour, 365-day emergency interventional capability for immediate primary angioplasty (after the model of trauma centers). Universal triage/transfer of all such patients to interventional centers could, however, quickly flood the capability of all tertiary surgical hospitals. With the aging of the 'baby boomers' in the near future, the need for interventional facilities will increase even further. Thus the second and third solutions above will ultimately depend on the first solution. Improving the delivery of interventional therapy to patients with ACS can provide a substantial healthcare benefit to society.

Acute Disease↗
PubMed2006

A systematic review of interventions to improve diabetes care in socially disadvantaged populations.

OBJECTIVE: To identify and synthesize evidence about the effectiveness of patient, provider, and health system interventions to improve diabetes care among socially disadvantaged populations. RESEARCH DESIGN AND METHODS: Studies that were included targeted interventions toward socially disadvantaged adults with type 1 or type 2 diabetes; were conducted in industrialized countries; were measured outcomes of self-management, provider management, or clinical outcomes; and were randomized controlled trials, controlled trials, or before-and-after studies with a contemporaneous control group. Seven databases were searched for articles published in any language between January 1986 and December 2004. Twenty-six intervention features were identified and analyzed in terms of their association with successful or unsuccessful interventions. RESULTS: Eleven of 17 studies that met inclusion criteria had positive results. Features that appeared to have the most consistent positive effects included cultural tailoring of the intervention, community educators or lay people leading the intervention, one-on-one interventions with individualized assessment and reassessment, incorporating treatment algorithms, focusing on behavior-related tasks, providing feedback, and high-intensity interventions (>10 contact times) delivered over a long duration (>or=6 months). Interventions that were consistently associated with the largest negative outcomes included those that used mainly didactic teaching or that focused only on diabetes knowledge. CONCLUSIONS: This systematic review provides evidence for the effectiveness of interventions to improve diabetes care among socially disadvantaged populations and identifies key intervention features that may predict success. These types of interventions would require additional resources for needs assessment, leader training, community and family outreach, and follow-up.

Adult↗
PubMed2000

Behavioral interventions for adolescents with type 1 diabetes: how effective are they?

OBJECTIVE: To evaluate the effectiveness of behavioral interventions for adolescents with type 1 diabetes based on a systematic review of the literature. RESEARCH DESIGN AND METHODS: The literature was identified by searching 11 electronic databases, hand-searching 3 journals from their start dates, and contacting individual researchers. Only articles that reported evaluations of behavioral (including educational and psychosocial) interventions for adolescents (age range 9-21 years) with type 1 diabetes that included a control group were included in the present review. Data summarizing the key features of the interventions and their effects were extracted from each article. Where possible, effect sizes for the randomized control trials (RCTs) were calculated. RESULTS: The search process identified 64 reports of empirical studies. Of these, 35 studies included a control group, and 24 were RCTs. Effect sizes could be calculated for 18 interventions. The overall mean effect size calculated across all outcomes was 0.33 (median 0.21), indicating that these interventions have a small- to medium-sized beneficial effect on diabetes management. Interventions that were theoretically based were significantly more effective than those that were not (P<0.05, 1-tailed). CONCLUSIONS: Research to date indicates that these interventions are moderately effective. Several methodological weaknesses to be avoided in future studies are noted. It is also recommended that investigators use the reach, efficacy, adoption, implementation, and maintenance (RE-AIM) framework to guide the design of future studies, which should result in more disseminable interventions. RE-AIM assesses the intervention's reach, or percent or representativeness of patients willing to participate; efficacy across a range of outcomes; adoption, or the percent and representativeness of settings willing to implement the intervention; implementation, or the consistency of the delivery of the intervention as intended; and maintenance, or the extent to which delivery of the intervention becomes a routine part of health care in the medical setting.

Adolescent↗
PubMed2003

The Finnish Diabetes Prevention Study (DPS): Lifestyle intervention and 3-year results on diet and physical activity.

OBJECTIVE: To describe the 1) lifestyle intervention used in the Finnish Diabetes Prevention Study, 2) short- and long-term changes in diet and exercise behavior, and 3) effect of the intervention on glucose and lipid metabolism. RESEARCH DESIGN AND METHODS: There were 522 middle-aged, overweight subjects with impaired glucose tolerance who were randomized to either a usual care control group or an intensive lifestyle intervention group. The control group received general dietary and exercise advice at baseline and had an annual physician's examination. The subjects in the intervention group received additional individualized dietary counseling from a nutritionist. They were also offered circuit-type resistance training sessions and advised to increase overall physical activity. The intervention was the most intensive during the first year, followed by a maintenance period. The intervention goals were to reduce body weight, reduce dietary and saturated fat, and increase physical activity and dietary fiber. RESULTS: The intervention group showed significantly greater improvement in each intervention goal. After 1 and 3 years, weight reductions were 4.5 and 3.5 kg in the intervention group and 1.0 and 0.9 kg in the control group, respectively. Measures of glycemia and lipemia improved more in the intervention group. CONCLUSIONS: The intensive lifestyle intervention produced long-term beneficial changes in diet, physical activity, and clinical and biochemical parameters and reduced diabetes risk. This type of intervention is a feasible option to prevent type 2 diabetes and should be implemented in the primary health care system.

Diabetes Mellitus, Type 2↗
PubMed2003

Within-trial cost-effectiveness of lifestyle intervention or metformin for the primary prevention of type 2 diabetes.

OBJECTIVE: The Diabetes Prevention Program (DPP) demonstrated that intensive lifestyle and metformin interventions reduced the incidence of type 2 diabetes compared with a placebo intervention. The aim of this study was to assess the cost-effectiveness of the lifestyle and metformin interventions relative to the placebo intervention. RESEARCH DESIGN AND METHODS: Analyses were performed from a health system perspective that considered direct medical costs only and a societal perspective that considered direct medical costs, direct nonmedical costs, and indirect costs. Analyses were performed with the interventions as implemented in the DPP and as they might be implemented in clinical practice. RESULTS: The lifestyle and metformin interventions required more resources than the placebo intervention from a health system perspective, and over 3 years they cost approximately US dollars 2250 more per participant. As implemented in the DPP and from a societal perspective, the lifestyle and metformin interventions cost US dollars 24400 and US dollars 34500, respectively, per case of diabetes delayed or prevented and US dollars 51600 and US dollars 99200 per quality-adjusted life-year (QALY) gained. As the interventions might be implemented in routine clinical practice and from a societal perspective, the lifestyle and metformin interventions cost US dollars 13200 and US dollars 14300, respectively, per case of diabetes delayed or prevented and US dollars 27100 and US dollars 35000 per QALY gained. From a health system perspective, costs per case of diabetes delayed or prevented and costs per QALY gained tended to be lower. CONCLUSIONS: Over 3 years, the lifestyle and metformin interventions were effective and were cost-effective from the perspective of a health system and society. Both interventions are likely to be affordable in routine clinical practice, especially if implemented in a group format and with generic medication pricing.

Adult↗
PubMed2001

Durability of response to a targeted intervention to modify clinician transfusion practices in a major teaching hospital.

OBJECTIVES: To determine the durability of a successful intervention to modify clinician transfusion practices, and to compare current transfusion practices in the "intervention" hospital with those in a hospital with no intervention. DESIGN: Prospective, descriptive study. SETTING: Two major metropolitan teaching hospitals--Royal Melbourne Hospital and Western Hospital, Footscray. SUBJECTS: Consecutive patient transfusion episodes for red cells, platelets and fresh frozen plasma (FFP). OUTCOME MEASURES: Appropriateness of transfusion according to intervention guidelines; comparison of inappropriate transfusion rates before the intervention, immediately after the intervention and 3 years after the intervention. Comparison of inappropriate transfusion rates in intervention and non-intervention hospitals. RESULTS: Inappropriate transfusion rates 3 years after the intervention were 20% for red cells, 27% for platelets, and 43% for FFP. These were significantly higher than equivalent rates reported immediately after the intervention. Inappropriate transfusion rates at the non-intervention hospital were comparable (26% for red cells, 36% for platelets and 52% for FFP). CONCLUSION: Appropriate clinician transfusion practices have proven difficult to sustain 3 years after hospital guideline generation and promotion. A "gate-keeping" role by hospital blood bank staff proved impractical in the long term.

Australia↗
PubMed2001

The cost and cost-effectiveness of an enhanced intervention for people with substance abuse problems at risk for HIV.

OBJECTIVE: To estimate the costs, effectiveness, and cost-effectiveness of prevention interventions for out-of-treatment substance abusers at risk for HIV. This is the first cost-effectiveness study of an AIDS intervention that focuses on drug use as an outcome. STUDY DESIGN: We examined data from the North Carolina Cooperative Agreement site (NC CoOp). All individuals in the study were given the revised NIDA standard intervention and randomly assigned to either a longer, more personalized enhanced intervention or no additional intervention. We estimated the cost of each intervention and, using simple means analysis and multiple regression models, estimated the incremental effectiveness of the enhanced intervention relative to the standard intervention. Finally, we computed cost-effectiveness ratios for several drug use outcomes and compared them to a "back-of-the-envelope" estimate of the benefit of reducing drug use. PRINCIPAL FINDINGS: The estimated cost of implementing the standard intervention is $187.52, and the additional cost of the enhanced intervention is $124.17. Cost-effectiveness ratios range from $35.68 to $139.52 per reduced day of drug use, which are less than an estimate of the benefit per reduced drug day. CONCLUSIONS: The additional cost of implementing the enhanced intervention is relatively small and compares favorably to a rough estimate of the benefits of reduced days of drug use. Thus, the enhanced intervention should be considered an important additional component of an AIDS prevention strategy for out-of-treatment substance abusers.

AIDS Serodiagnosis↗
PubMed2001

Inreach and outreach interventions to improve mammography use.

OBJECTIVE: to assess the effectiveness of patient-targeted interventions in increasing mammography use when performed outside (outreach) or inside the primary care medical setting (inreach). METHODS: We performed a meta-analysis of controlled interventions to increase mammography use in patients in the United States published between 1980 and February 2001. Interventions were classified by setting (inreach or outreach), mechanism of action (behavioral, cognitive, sociologic, or a combination), type of control group (active or usual care), number of strategies, and mode of delivery (static or interactive). Summary estimates were calculated with DerSimonian and Laird random effects models for each group of interventions. RESULTS: We included 66 studies with 98 separate interventions. Inreach and outreach interventions were equally effective in increasing mammography use. Compared to active controls, behavioral interventions with multiple strategies increased mammography use by 14.0% (95% CI, 8.7-19.2) in inreach and 18.7% (95% CI, 4.9-32.4) in outreach settings. Theory-based educational strategies delivered interactively increased mammography use by 10.7% (95% CI, 6.8-14.7) and 19.9% (95% CI, 10.6-29.1) in inreach and outreach settings, respectively. Interventions that combined behavioral and theory-based educational strategies with usual care controls increased mammography use by 14.0% (95% CI, 7.9-20.2) in inreach and 27.3% (95% CI, 14.7-40.0) in outreach settings. Finally, sociologic interventions increased mammography use by 10.7% (95% CI, 3.4-18.0) and 9.1% (95% CI, 1.7-13.3) in inreach and outreach settings, respectively. CONCLUSIONS: Inreach and outreach interventions to increase mammography use were similarly effective within intervention categories based on mechanism of action, mode of delivery, and type of control group. Ultimate decisions about intervention strategies will depend on the characteristics of the target population, practical considerations, and relative cost-effectiveness.

Breast Neoplasms↗
PubMed2002

A meta-analysis of the effect of HIV prevention interventions on the sex behaviors of drug users in the United States.

We examined the effectiveness of 33 U.S.-based HIV intervention studies in reducing the sexual risk behaviors of drug users by reducing unprotected sex or increasing the use of male condoms. The studies, identified as of June 1998, through the HIV/AIDS Prevention Research Synthesis project, were published in 1988 or later, measured behavioral or biologic outcomes, used experimental designs or certain quasi-experimental designs, and reported sufficient data for calculating an effect size for sexual risk reduction. Of the 33 studies, 94% recruited injection drug users; 21% recruited crack users. The mean age of participants was 36 years. Almost all studies were randomized (94%), provided another HIV intervention to the comparison groups (91%), and evaluated behavioral interventions (91%). On average, interventions were conducted in 5 sessions (total, 10 hours) during 4.5 months. Interventions compared with no interventions were strong and significant (k = 3; odds ratio [OR], 0.60; 95% confidence interval [CI], 0.43-0.85). Interventions compared with other HIV interventions showed a modest additional benefit (k = 30; OR, 0.91; 95% CI, 0.81-1.03). When we extrapolated our result (an OR of 0.60) to a population with a 72% prevalence of risk behavior, the proportion of drug users who reduced their risk behaviors was 12.6% greater in the intervention groups than in the comparison groups. Our meta-analysis shows that interventions can lead to sexual risk reduction among drug users and justifies providing interventions to drug users. Developing interventions with stronger effects to further reduce sexual risk behaviors among drug users must remain a high priority.

Acquired Immunodeficiency Syndrome↗
PubMed2002

Impact of primary care depression intervention on employment and workplace conflict outcomes: is value added?

BACKGROUND: Depression causes significant functional impairment in sufferers and often leads to adverse employment outcomes for working individuals. Recovery from depression has been associated with better employment outcomes at one year. AIMS OF THE STUDY: The study s goals were to assess a primary care depression intervention s impact on subsequent employment and workplace conflict outcomes in employed patients with depression. METHODS: In 1996-1997, the study enrolled 262 employed patients with depression from twelve primary care practices located across ten U.S. states; 219 (84%) of the patients were followed at one year. Intent-to-treat analyses assessing intervention effects on subsequent employment and workplace conflict were conducted using logistic regression models controlling for individual clinical and sociodemographic characteristics, job classification and local employment conditions. To meet criteria for subsequent employment, persons working full-time at baseline had to report they were working full-time at follow-up and persons working part-time at baseline had to report working part-/full-time at follow-up. Workplace conflict was measured by asking patients employed at follow-up whether, in the past year, they had arguments or other difficulties with people at work . RESULTS: Findings showed that 92.1% of intervention patients met criteria for subsequent employment at one year, versus 82.0% of usual care patients (c2=4.42, p=.04). Intervention patients were less likely than usual care patients to report workplace conflict in the year following baseline (8.1% vs. 18.9%, respectively; c2=4.11; p=.04). The intervention s effect on subsequent employment was not mediated by its effect on workplace conflict. DISCUSSION: The intervention significantly improved employment outcomes and reduced workplace conflict in depressed, employed persons at one year. Economic implications for employers related to reduced turnover costs, for workers related to retained earnings, and for governments related to reduced unemployment expenditures and increased tax receipts may be considerable. LIMITATIONS: Although similar primary care depression interventions have been shown to produce comparable effects on subsequent employment at one year, replications in larger samples of depressed, employed patients in different economic climates may be necessary to increase the generalizability and precision of estimates. IMPLICATIONS FOR HEALTH CARE PROVISION AND USE: Primary care interventions that enhance depression treatment and improve clinical outcomes can contribute meaningful added value to society by improving employment and workplace outcomes. IMPLICATIONS FOR HEALTH POLICIES: Federal/state governments may realize economic benefits from reduced unemployment expenditures and increased tax receipts should primary care depression interventions that improve employment outcomes be broadly disseminated. Policy initiatives to increase the dissemination of such interventions may be an innovative approach for improving labor force participation by depressed individuals. IMPLICATIONS FOR FURTHER RESEARCH: Formal cost-benefit analyses are needed to explore whether economic benefits to societal stakeholders from these and other labor outcomes equal or exceed the incremental costs of disseminating similar primary care interventions nationally. Researchers in other nations may wish to consider investigating the impact primary care depression interventions might have on employment and workplace outcomes in their countries.

Adult↗
PubMed2003

[Community intervention on hypertension and stroke].

OBJECTIVE: To evaluate the community-based intervention on reduction of hypertension and stroke in different age groups and subtypes hypertension. METHODS: In 6 cities, 2 geographically separated communities with a registered population about 10 000 of each were selected as either intervention or control communities. A cohort containing 2 700 subjects, 35 years or older, and free of stroke were sampled from each community. The baseline survey was conducted to screen the subjects for intervention. In each city, a program for control of hypertension, heart diseases and diabetes was initiated in the intervention cohort and health education was provided to the whole intervention community. A follow-up survey was conducted 3 years later. RESULTS: Within 3 years, the prevalence of hypertension increased in both intervention and control cohorts, as well as in the middle and elderly cohorts, especially in the middle aged in control group. Among hypertensives in the intervention cohort, the rates of awareness, treatment and control of hypertension got improved. The incidence of stroke was 29% lower (HR = 0.71, 95% CI: 0.58 - 0.87) and mortality of stroke was 40% lower (HR = 0.60, 95% CI: 0.42 - 0.86) in the intervention cohort than the control cohort. The intervention was most effective in reduction of stroke for those with isolated systolic hypertension and combined systolic and diastolic hypertension (All P < 0.05). Meanwhile, all-cause mortality was 11% lower (HR = 0.89, 95% CI: 0.78 - 0.99) in the intervention cohort than in the control cohort. CONCLUSION: The community-based intervention was effective in controlling the development of hypertension and stroke, while the elderly people benefit more than the middle aged people from the intervention.

China↗
PubMed2003

[The effect of dietary intervention on lipidemia in school-aged children].

OBJECTIVE: To evaluate the effect of dietary intervention on lipidemia in school-aged children. METHODS: The levels of serum lipids profile were detected in 316 school children aged 7 - 11, from those the subjects of dietary intervention were selected by total cholesterol level above 4.26 mmol/L or low density lipoprotein cholesterol level above 2.23 mmol/L. The subjects were randomly divided into intervention group (120) and control group (40). Children in intervention group were fed with low-cholesterol and low-saturated fatty acid diet, and the control group with normal diet. The duration of intervention was three months. Before and after the intervention, the food intakes, health-related questionnaire and physical examination (height, weight, skinfolds thickness and so on) in the two groups were studied. RESULTS: Compared with the control group, serum cholesterol levels of children under intervention were not significantly changed (TC: 4.64 vs 4.68 mmol/L, P > 0.05; LDL-C: 2.66 vs 2.62 mmol/L, P > 0.05), but the apoA(1) level increased from 1,378.4 mg/L to 1,441.3 mg/L (P < 0.05). There were no changes for any serum lipids indexes in the control group while the dietary intakes of energy, cholesterol and SFA decreased markedly in the intervention group, with the percent of energy from fat decreased from 40.7% to 31.2% and SFA below to 10% (7.7%). Along with the increase of the scores of knowledge on health among children under intervention, the living and eating habit improved (the total scores increased from 24.6 to 27.4, P < 0.05). The increase of height was not significantly different between the two groups. CONCLUSION: With the family-based high-risk intervention strategy on the dietary adjustment, the knowledge on health, living and eating habit could be effectively improved in children with lipidemia. However, further research about the intervention effect on the serum cholesterol levels by strengthening the interventional degree, needs to be further studied.

Child↗