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Biomedical subjects

C Godfrey

Publications and source records attributed to C Godfrey.

At least 19 recordsLinked to original sources
PubMed2002

Is smoking a communicable disease? Effect of exposure to ever smokers in school tutor groups on the risk of incident smoking in the first year of secondary school.

OBJECTIVE: To estimate the effect of joining a first year secondary school tutor group with a high prevalence of ever smoking on the risk of incident smoking in schoolchildren. DESIGN: Cross-sectional questionnaire survey. SETTING: 10 randomly selected secondary schools in Nottinghamshire, UK. PARTICIPANTS: Pupils in years (grades) 7-11 (aged 11-16 years). MAIN OUTCOME MEASURE: Incident smoking in the first year of secondary education, defined as pupils who reported smoking their first cigarette during year 7. RESULTS: Of 6522 pupils (75% of those eligible) who completed the questionnaire, 17% were current smokers and 49% had ever smoked, of whom 23% had started smoking in year 7. Incident smoking in year 7 was more common in girls, in children with parents or siblings who smoke, and in more deprived children, and was independently increased in relation to the proportion of ever smokers in the year 7 tutor group joined by the child (adjusted odds ratio of incident smoking for a child joining a year 7 tutor group in the highest relative to the lowest quartile of ever smoking prevalence 1.45, 95% confidence interval (CI) 1.11 to 1.89). Exposure to ever smokers in year 7 tutor groups also accounted for most of the increased risk of incident smoking associated with socioeconomic deprivation. CONCLUSIONS: The risk of incident smoking in children entering secondary education is independently increased by exposure to other ever smokers in school tutor groups. Incident smoking in adolescents is thus to some extent a communicable disorder, and may be partly preventable by policies that reduce exposure to smoking at school.

Adolescent↗
PubMed2001

Counselling for depression in primary care.

BACKGROUND: There is wide clinician and patient support for counselling in primary care, particularly in the UK. This review examines the effectiveness and cost effectiveness of counselling for psychological and psychosocial problems in the primary care setting. OBJECTIVES: To assess the effects of counselling in primary care by reviewing cost and outcome data for patients with psychological and psychosocial problems considered suitable for counselling. SEARCH STRATEGY: The search strategy included electronic searching of databases (including the CCDAN Register of RCTs and CCTs) along with handsearching of a specialist journal. Published and unpublished sources (clinical trials, books, dissertations, agency reports etc.) were searched, and their reference lists scanned. Contact was made with subject experts and CCDAN members. SELECTION CRITERIA: Randomised and controlled patient preference trials comparing counselling in primary care with usual general practitioner care for patients with psychological and psychosocial problems considered suitable for counselling. Trials completed before the end of April 1998 were included in the review. DATA COLLECTION AND ANALYSIS: Trials were independently assessed by at least two reviewers for appropriateness of inclusion and methdological quality. MAIN RESULTS: Four trials, involving 678 participants, of whom 487 were followed up, were included. Data for psychological symptom levels (four trials) were pooled statistically. Patients receiving counselling had significantly better psychological symptom levels post intervention than patients receiving usual general practitioner care (standardised mean difference -0.30, 95% CI, (-0.49 to - 0.11). The effect remained statistically significant when the results from studies with less rigorous methodology were excluded in a sensitivity analysis. Patients who received counselling tended to be more satisfied with their treatment (three trials). Health service utilisation data were reported in all trials reviewed, but only one trial undertook a cost analysis. No clear cost advantage was associated with either counselling or usual general practice care. REVIEWER'S CONCLUSIONS: Patients who received counselling were more likely to have improved psychological symptom levels than those who did not receive counselling. Levels of satisfaction with counselling were high. There is limited information about the cost effectiveness of counselling, with one study reporting no clear cost advantage with either counselling or general practice care. The four trials included in this review were all pragmatic trials of counselling in primary care in the UK, which reflect the reality of clinical provision in this context. There were methdological weaknesses identified in the studies, which should be taken into account when considering the results. The evidence base will be extended by trials of counselling which are nearing completion.

Controlled Clinical Trials as Topic↗
PubMed2001

Development of the health and economic consequences of smoking interactive model.

OBJECTIVE: To describe the health and economic consequences of smoking model, a user friendly, web based tool, designed to estimate the health and economic outcomes associated with smoking and the benefits of smoking cessation. RESULTS: An overview of the development of the model equations and user interface is given, and data from the UK are presented as an example of the model outputs. These results show that a typical smoking cessation strategy costs approximately 1200 pounds sterling per life year saved and 22,000 pounds sterling per death averted. CONCLUSIONS: The model successfully captures the complexity required to model smoking behaviour and associated mortality, morbidity, and health care costs. Furthermore, the interface provides the results in a simple and flexible way so as to be useful to a variety of audiences and to simulate a variety of smoking cessation methods.

Health Promotion↗
PubMed2001

Building capacity for system-level change in schools: lessons from the Gatehouse Project.

The Gatehouse Project is an innovative, comprehensive approach to mental health promotion in secondary schools. It sets out to promote student engagement and school connectedness as the way to improve emotional well-being and learning outcomes. The key elements of the whole-school intervention are the establishment and support of a school-based adolescent health team; the identification of risk and protective factors in each school's social and leaning environment from student surveys; and, through the use of these data, the identification and implementation of effective strategies to address these issues. The project evaluation used a cluster-randomized controlled trial design involving 26 schools with initial results demonstrating considerable success in reducing smoking rates among Year 8 children. This article describes and accounts for how system-level changes have been made in schools through a process of capacity building. This encourages teachers, parents, and students to view the core business of education differently.

Adolescent↗
PubMed2001

The economic and social costs of lung cancer and the economics of smoking prevention.

Lung cancer is a major cause of the premature loss of life and the costs to society of lung cancer are significant. Since smoking is the major cause of lung cancer, the main prevention strategy is to reduce smoking. Interventions to reduce smoking have been shown to be cost effective, from population measures such as tax and advertising restrictions through to individual or group treatments. Different groups of the population may well benefit from different interventions and there could be synergistic effects from a comprehensive programme. Treatment for smokers is an important part of any programme and especially important to prevent longer term smokers contracting lung cancer. However, most health care systems have not been successful in ensuring that smoking cessation interventions have a high priority. It should be an urgent task to ensure that the small additional resources for this work are fully reimbursed and incentives introduced to reap both major health gains and future reductions in health costs.

Cost of Illness↗
PubMed2000

Pretest assessment as a component of safer sex intervention: a pilot study of brief one-session interventions for women partners of male injection drug users in New York City.

This pilot study evaluated whether brief safer sex interventions for women partners of male injection drug users significantly influenced perceptions of partner risk, human immunodeficiency virus (HIV) knowledge, correct condom usage, and self-reported consistent safer sex (abstinence or 100% of vaginal-penile intercourse acts protected by male or female condoms). The study also examined the impact of pretest assessment on those variables since pretest assessment may challenge participants' current knowledge, safer sex practices, and partner communication techniques. The study randomly assigned participants to pretest or no pretest assessment. Each group was also assigned randomly to a presentation modality: (1) safer sex pamphlet review only, (2) pamphlet review with demonstration of several safer sex alternatives, or (3) pamphlet review with skills practice to mastery with one safer sex alternative of the woman's choice. For the last two conditions, a 35-minute interactive session covered prevention efficacy of safer sex methods for HIV, sexually transmitted infections, pregnancy, correct use, eroticization, local cost and availability, and partner objections. At 7 weeks postintervention, a higher proportion of women who took pretest assessment reported consistent safer sex (66.7%) compared to those without pretests (55.6%). Assignment to the interactive interventions (skills or demonstration) had little additional impact over pretest assessment for these women. Among women who did not take pretests, the interactive interventions had strong effects; 76.9% reported consistent safer sex versus 33.3% in the pamphlet review group. There were additional specific effects for pretest assessment on HIV knowledge and partner risk perception and for interactive intervention on correct condom usage. Brief interventions appear to have some positive short-term effects. Pretest assessment may be an important component of brief interventions.

Adult↗
PubMed2000

The Gatehouse Project: a systematic approach to mental health promotion in secondary schools.

OBJECTIVE: The objective of this paper is to outline the conceptual background and strategy of intervention for a systematic and sustainable approach to mental health promotion in secondary schools. METHOD: The conceptual origins of the Gatehouse Project are described in terms of the epidemiology of adolescent mental health problems, attachment theory, education reform research and health promotional theory and practice. The elements of health promotional work are described in terms of structural change and priority setting; implementation at multiple levels within the participating schools is described. RESULTS: The conceptual framework of the Gatehouse Project emphasises healthy attachments with peers and teachers through the promotion of a sense of security and trust, effective communication and a sense of positive self-regard based on participation in varied aspects of school and community life. A school social climate profile is derived from a questionnaire survey of students. An adolescent health team uses this information to set priorities for change within the school. Interventions may focus on the promotion of a positive social climate of the whole school or in the classroom. Curriculum-based health education is also used and based on materials that are relevant to the normal developmental experiences of teenagers. These are integrated into the mainstream curriculum and incorporate a strong component of teacher professional development. Lastly, the intervention promotes linkage between the school and broader community with a particular emphasis on the needs of young people at high risk of school drop-out. CONCLUSIONS: Educational environments are complex systems undergoing continuous and simultaneous changes. The Gatehouse Project will provide unique information on the relationship between the social environment and the emotional wellbeing of young people. More importantly it outlines a sustainable process for building the capacity of schools to promote the social and emotional development of young people.

Adolescent↗
PubMed2000

Costs of employee smoking in the workplace in Scotland.

BACKGROUND: Employers have responded to new regulations on the effects of passive smoking by introducing a range of workplace policies. Few policies include provision of smoking cessation intervention. OBJECTIVE: To estimate the cost to employers of smoking in the workplace in Scotland to illustrate the potential gains from smoking cessation provision. Costs vary with type of smoking policy in place; therefore, to estimate these costs results from a survey were combined with evidence drawn from a literature review. STUDY DESIGN: A telephone survey of 200 Scottish workplaces, based on a stratified random sample of workplaces with 50 or more employees, was conducted in 1996. Additional evidence was compiled from a review of the literature of smoking related costs and specific smoking related effects. RESULTS: 167 completed responses were received, of which 156 employers (93%) operated a smoking policy, 57 (34%) operated smoke free buildings, and 89 (53%) restricted smoking to a "smoke room". The research literature shows absenteeism to be higher among smokers when compared to non-smokers. The estimated cost of smoking related absence in Scotland is pound40 million per annum. Total productivity losses are estimated at approximately pound450 million per annum. In addition, the resource cost in terms of losses from fires caused by smoking materials is estimated at approximately pound4 million per annum. In addition, there are costs from smoking related deaths and smoking related damage to premises. CONCLUSION: This study shows how smoking cessation interventions in the workplace can yield positive cost savings for employers, resulting in gains in productivity and workplace attendance which may outweigh the cost of any smoking cessation programme.

Absenteeism↗
PubMed1999

Occult bladder injury during laparoscopy: report of two cases.

Bladder injuries occur in approximately 1.6% of all laparoscopic procedures. Most often, these injuries are recognized intraoperatively or immediately postoperatively because of gross hematuria. We report two cases of bladder injury related to placement of suprapubic laparoscopic trocars that were not recognized at the time of surgery and in which no gross hematuria was evident. In each case, the patient had a history of abdominal surgery, and the diagnosis was difficult to make. The treatment was prolonged catheterization in one patient and laparotomy through a midline incision in the other. Strategies are discussed for minimizing the risk of bladder injury during laparoscopic trocar placement and for diagnosing and treating injuries.

Adult↗
PubMed1998

Alternative health care: its use by individuals with physical disabilities.

OBJECTIVE: This research investigated the use of alternative therapies by individuals with physical disabilities. DESIGN: A telephone survey of a cross-sectional convenience sample of people with disabilities. SETTING: An urban, outpatient rehabilitation facility specializing in vocational services. PARTICIPANTS: A convenience sample of 401 working-age individuals. MAIN OUTCOME MEASURE(S): Self-reported use of alternative therapy. RESULTS: More of this sample of individuals with physical disabilities than a randomized, national sample of the general population used alternative therapies (57.1% vs 34%) and saw providers of those therapies (22% vs 10%). Among individuals in the current sample, significant positive relationships between use of alternative therapies and education and income levels were discovered. The use of alternative therapies by this sample, however, was not associated with racial identity, gender, or age. Compared with the general population, this study's respondents reported a higher proportion of chronic pain (14% vs 8%) and depression (14% vs 8%), and a lower proportion of severe headache (9.2% vs 13%). Alternative therapies were chosen more often than conventional therapies by those with physical disabilities for pain (51.8% vs 33.9%), depression (33.9% vs 25%), anxiety (42.1% vs 13.1%), insomnia (32.3% vs 16.1%), and headaches (51.4% vs 18.9%). CONCLUSION: Physically disabled individuals are more likely to use alternative therapies than the general population and to see providers for them, have their use recommended by their physicians, and be reimbursed by their health insurance for them. A high prevalence of dysphoria is found among those with disabilities, for which a combination of alternative and conventional therapies is often used.

Adolescent↗
PubMed1998

The population pharmacokinetics of long-term methotrexate in rheumatoid arthritis.

AIMS: Methotrexate is considered by many practitioners to be the agent of choice in the treatment of rheumatoid arthritis. The pharmacokinetics of methotrexate have been reported to exhibit significant intersubject variability. Therefore, this study was undertaken to evaluate the population pharmacokinetics of methotrexate during long-term administration in adults with rheumatoid arthritis. METHODS: Methotrexate pharmacokinetics were evaluated in a 36 month study of 62 adults with rheumatoid arthritis. Patients received oral or intramuscular doses of methotrexate weekly with pharmacokinetic studies performed every 6 months. Data were analyzed with nonlinear mixed effects modeling. RESULTS: Three thousand two hundred and sixty post oral or intramuscular dose serum methotrexate concentrations comprising 425 individual concentration vs time profiles were modeled using NONMEM. Covariates that significantly (P < 0.005) influenced the disposition of methotrexate were age (AGE, years), body weight (BW, kg), creatinine clearance (CL(CR), 1 h(-1)), gender (GEN; 0 = male, 1 = female), dose (DOSE, micromol), and fed vs fasted state (FED; 0 = fasted, 1 = fed). The final model describing the biexponential disposition of methotrexate was clearance(CL, 1 h(-1)) = (0.0810*BW + 0.257*CL(CR))*(1-(0.167*GEN); central volume (Vc, 1) = 0.311*BW; peripheral volume (Vp, 1) = 0.469*BW-0.169*AGE; intercompartmental clearance (Q, 1 h(-1)) = 4.27*(1-0.355*GEN); oral absorption rate constant (ka(p.o.), h(-1)) = 4.70-0.0439*DOSE*(1-0.507*FED); intramuscular absorption rate constant (ka(i.m.), h(-1)) = 0.122*DOSE; relative bioavailability (F) = 93.4%; and oral absorption lag time (LAG(p.o.), min) = 13.5. Pharmacokinetic parameters (%CV) for a typical fasted male subject in this study were CL, 7.341 h(-1) (27%); Vc, 23.51 (28%); Vp, 25.31 (31%); Q, 4.25 1 h(-1) (41%); ka(p.o.), 3.67 h(-1) (77%); and ka(i.m.), 3.09 h(-1) (44%). CONCLUSIONS: The population pharmacokinetics of methotrexate in adults with rheumatoid arthritis were well described by this investigation. Substantial interpatient variability was explained by incorporating patient specific data into regression equations predicting pharmacokinetic parameters.

Adult↗
PubMed1998

Economic burden of drug dependency. Social costs incurred by drug users at intake to the National Treatment Outcome Research Study.

BACKGROUND: The use of illegal drugs is seen as a major social problem. The social costs can be high. METHODS: Self-report data from interviews at intake to the National Treatment Outcome Research Study (NTORS) for 1075 drug users and cost data from various sources were used to estimate criminal behaviour and health and addiction service costs for a 12-month period. Multivariate statistical analysis was used to analyse cost variations. RESULTS: Total costs for one year for the drug users amounted to over 12 million Pounds, the majority attributable to self-reported criminal behaviour. Social costs were positively related to a variety of factors including instability in living circumstances, amount of heroin used and whether or not drugs were taken intravenously. CONCLUSIONS: The study clearly demonstrates the economic and social burden associated with heavy drug users and highlights the need for further investigations into the costs and benefits of policies that can reduce these social costs.

Age Factors↗