Social and health care determinants of area variations in perinatal mortality.
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Analysis of Variance↗
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Evaluation of a collective kitchens program: using the Population Health Promotion Model.
To evaluate the impact of the Calgary Health Region Collective Kitchen Program on various Population Health Promotion Model health determinants, data were collected through mail-in questionnaires that examined the members' (n=331) and coordinators' (n=58) perspectives of the program. Seventy-nine members (24%) and 26 coordinators (45%) were included in the study. Three incomplete questionnaires (from prenatal program members) were discarded. Sixty-one percent of members who reported income level and family size (n=61) had incomes below the low-income cut-off. Fifty-eight members (73%) reported improvements in their lives because of the program. Sixty-four members (81%) perceived they learned to feed their families healthier foods. The members reported their fruit and vegetable consumption before and since joining a collective kitchen, and the proportion of those consuming at least five fruit and vegetable servings a day rose from 29% to 47%. The most common reasons for joining this program concerned social interactions and support. Over 90% of the coordinators perceived that they were competent to coordinate a kitchen. The results indicate that the collective kitchens program addresses several health determinants, and may increase members' capacity to attain food security and to achieve improved nutritional health.
Adolescent↗
Metabolome-driven rhizosphere microbiome assembly determining the health of medicinal herb (Angelica sinensis) against root rot.
BACKGROUND: The rhizosphere-associated microbiota plays a crucial role in plant responses to disease stress. Plant secondary metabolites are recognized as crucial mediators in the assembly of rhizosphere microbial communities, particularly by enhancing the colonization of beneficial microorganisms. Despite this recognized importance, a deeper understanding of how such metabolome-driven microbiome assembly specifically determines plant resistance against soil-borne diseases is still lacking. RESULTS: Here, we focused on the widely planted medicinal plant Angelica sinensis and demonstrated that root rot-diseased rhizosphere soils (DRS) exhibited a higher relative abundance of Fusarium and a lower relative abundance of Streptomyces compared to healthy rhizosphere soils (HRS). Shotgun metagenomic sequencing revealed that metabolism-associated genes, particularly those related to steroid degradation, are significantly enriched in HRS samples. Subsequent genome and functional gene analysis of Streptomyces revealed that the steroid degradation-related genes are associated with rhizosphere colonization in hosts. Rhizosphere Streptomyces S15 directly antagonized Fusarium and enhanced the root resistance of A. sinensis. Comparative metabolomics showed that A. sinensis plants from HRS secreted more lipid and lipid-like molecules than those from DRS, especially sterol lipids and long-chain fatty acids, which promoted the growth of Streptomyces S15 isolates. Transcriptome analysis validated that the lipid hormones are essential for sporulation, biofilm formation, and streptomycin biosynthesis of S15 strain. Finally, exogenous application of synbiotics (lipid prebiotics and S15) to A. sinensis resulted in the enrichment of S15-homologous Streptomyces amplicon sequence variant (ASV), further establishing beneficial bacterial communities in Fusarium-stressed rhizospheres. CONCLUSIONS: Our study proposes that A. sinensis recruits steroid-metabolizing Streptomyces species by exuding key lipid compounds (i.e., methyl jasmonate and brassinolide) to combat Fusarium root rot. This study provides novel insights into using functional synbiotics as a promising strategy for manipulating plant-microbiome interactions to promote sustainable agriculture. Video Abstract.
Rhizosphere↗
Children's adjustment to a parent's stroke: determinants of health status and psychological problems, and the role of support from the rehabilitation team.
OBJECTIVE: To investigate the support given to young children of patients with stroke by rehabilitation teams and to identify characteristics of the patients, spouses and children that relate to children's adjustment 2 months after the patient's discharge. SUBJECTS AND METHODS: Seventy-seven children (< or =18 years of age) of patients with stroke consecutively admitted to inpatient rehabilitation were included. Adjustment was measured with the Child Behaviour Check List, Child Depression Inventory and Functional Status II. Multilevel regression analyses were conducted to identify determinants of adjustment. RESULTS: Half of the children received some form of support from a rehabilitation team. Receiving more support was related to more severe disability of the parent with stroke, but not to the child's health or behavioural problems at the start of the stroke victim's inpatient stay. At the start of rehabilitation, 54% of the children had subclinical or clinical problems. Children's adjustment 2 months after their parent's discharge was related to the strain on spouses and not to the patients' characteristics or those of the support. CONCLUSION: The children's adjustment was related to the strain perceived by the healthy parent. There is a need for support that focuses on the experience of children of patients with stroke, regardless of stroke severity.
Adaptation, Psychological↗
For better or worse: common determinants influencing health and disease in parasitic infections, asthma and reproductive biology.
What represents a protective or beneficial immune response in one scenario, may contribute to the pathogenesis of disease in another. This review explores the plasticity of immune responses and the delicate balance between health and disease, using examples from immunoparasitology, allergic lung disease and reproductive biology. Cytokines secreted by lymphocytes and other leukocytes are central to this balance because they regulate both inflammation and adaptive immunity. The type and quantity of cytokines, the timing and location of cytokine release, and coordinated expression with other signals can all contribute in determining the nature of immune responses and, therefore, of disease outcomes. Of necessity, leukocytes control and eliminate infectious agents by interacting with other cells. However, leukocytes also communicate with other cells to maintain homeostasis in healthy organisms. Tissue development, repair, remodelling and immunopathology can be viewed as parts of a continuum and leukocytes are major contributors to all of these processes. The factors, which influence the extent to which an infection will result in host pathology, are multifarious, but include as yet poorly determined elements within the genetic background of the host. Nowhere is this more obvious than in animals chronically infected with parasites. There are parallels between parasite infections and pregnancy, since to survive and develop, the conceptus also must avoid immunological rejection. Therapeutic intervention through manipulation of cytokine profiles may be feasible, but is fraught with risk and should not be undertaken without careful analysis of the possible consequences in a range of genetic backgrounds and with consideration of the diversity of infectious agents which might be encountered.
Animals↗
Determinants of health care costs and patterns of care of asthmatic patients in Switzerland.
OBJECTIVE: To investigate whether medical resource utilisation, costs and clinical status were influenced by: (1) type of physician (specialist versus GP); (2) treatment modality (on-demand vs long-term continuous therapy); (3) labour force participation; (4) insurance coverage (private vs statutory); (5) geographic area (urban vs rural). MATERIAL AND METHODS: Chart reviews in the last 5 patients seen by treating physicians. Direct medical expenditure included charges for hospitalisation, outpatient services, physicians' services and medication, whereas indirect costs included the value of time lost from work. RESULTS: The overall annual mean cost per patient in 589 patients was CHF 2600 [95% confidence interval: 1956; 3245]. Costs in 117 children were CHF 824 [531; 1116], and CHF 3041 [2244; 3837] in adults. Compared with pulmonologists, adults treated by GPs had a higher rate of hospital admissions, equal specialist referrals and more days off work. Hospital admissions in children were similar in GPs and paediatricians. Total direct costs were highest for internists, followed by GPs. Pulmonologists incurred the lowest direct costs in adults compared to GPs or internists (p < 0.05). Total costs for children were equal for GPs and paediatricians. Differences in costs between on-demand and long-term prophylactic treatment were: CHF 834 [318; 1351] versus CHF 1856 [1488; 2224], (p = 0.002). Highest total costs were observed for unemployed patients and those receiving disability payments. Patients with supplementary insurance cover had a lower overall resource utilisation rate and costs than patients without: CHF 2284 [95% CI: 535; 4034] versus CHF 2670 [1844; 3496] (p = 0.8). Total costs were CHF 2319 [1660; 2979] for patients treated in cities and CHF 3062 [1742; 4382] in rural areas (p < 0.0001) as well as lower in the German-speaking part of the country (CHF 2320 [1743; 2897]) than in the French-speaking region (CHF 3610 [1479; 5740] [p < 0.005]). CONCLUSIONS: Factors determining higher resource utilisation and costs are: treatment by non-specialists, long-term continuous treatment, the absence of supplementary health care insurance, treatment in rural areas, and treatment in the French-speaking cantons.
Adult↗
Trust me: technical and institutional determinants of health maintenance organizations shifting risk to physicians.
This paper examines the factors that influence a Health Maintenance Organization (HMO) to shift risk to doctors through an incentive arrangement called capitation, where physicians are paid a fixed amount per patient for a period of time for any and all medical services required by the patient. Multispecialty-medical-group (Group) HMOs are more likely to shift risk than Independent Physician Associations (IPA) HMOs. Within IPA HMOs, larger enrollment per physician is positively associated with more risk shifting. We find that institutional factors signaling legitimacy play an important role in determining risk shifting. For-profit HMOs are less likely to shift risk, which we interpret as reflecting consumer distrust of for-profit HMOs. However, for-profit HMOs that are federally qualified, which we interpret as a signal of legitimacy, are more likely to shift risk.
Capitation Fee↗
A naturalistic study of the determinants of health related quality of life improvement in osteoarthritic patients treated with non-specific non-steroidal anti-inflammatory drugs.
OBJECTIVES: To capture changes in the quality of life (QoL) occurring in patients with osteoarthritis (OA) during treatment with non-specific non-steroidal anti-inflammatory drugs (NSAIDs) and to identify factors that predict such changes. METHODS: A naturalistic, prospective follow up of 783 patients with OA in whom primary care physicians decided to start treatment with non-selective NSAIDs. Short Form-36 (SF-36) and the Western Ontario and McMaster Universities OA index (WOMAC) were assessed at baseline and after 3 months. Baseline results were compared with QoL values in 4800 subjects randomly selected from the general population. Multiple regression analysis was performed to identify determinants of QoL at baseline and measures influencing changes in SF-36 or WOMAC during follow up. RESULTS: All QoL dimensions were significantly (p<0.01) decreased in patients with OA compared with controls. Significant improvement (p<0.05) in four dimensions of the SF-36 (vitality, role emotional, role physical, bodily pain) and in all components of the WOMAC was seen between baseline and month 3. Older age, female sex, longer duration of OA, and a higher number of comorbidities were the major determinants of a poor QoL at baseline. Maximal benefit from non-specific NSAIDs was seen in patients with the most severe impairment in QoL and the shortest duration of OA. CONCLUSION: OA negatively impacts all dimensions of the QoL. Non-specific NSAIDs improve the QoL in patients with OA treated in a "real life setting". The profile of patients receiving maximal benefit from such treatment may be of interest for health providers, enabling them to decide who should preferentially be given cytoprotective treatments or coxibs.
Adult↗
Advertising health: the case for counter-ads.
Public service advertisements have been used by many in hopes of "selling" good health behaviors. But selling good behavior--even if it could be done more effectively--is not the best goal for using mass media to prevent health problems. Personal behavior is only part of what determines health status. Social conditions and the physical environment are important determinants of health that are usually ignored by health promotion advertising. Public service advertising may be doing more harm than good if it is diverting attention from more effective socially based health promotion strategies. Counter-ads are one communications strategy that could be used to promote a broader responsibility for rectifying health problems. In the tradition of advocacy advertising directly promoting policy rather than products, counter-ads promote views consistent with a public health perspective. Counter-ads set the agenda for health issues, conferring status on policy-oriented strategies for addressing health problems. The primary purpose of counter-ads is to challenge the dominant view that public health problems reflect personal health habits. They are controversial because they place health issues in a social and political context. Advertising strategies for health promotion range over a spectrum from individually oriented public service advertising to socially oriented counter-advertising. The recent anti-tobacco campaign from the California Department of Health Services represents advertisements across the spectrum. Counter-ads that focus on a politically controversial definition for health problems are an appropriate and necessary alternative to public service advertising.
Adolescent↗
Determinants of health care utilization by German sickness fund members--with application to risk adjustment.
In many countries, social health insurance systems are being reformed in favor of more competition among insurers, while premiums are community rated by regulation. The implicit incentives for insurers to engage in risk selection can only be curtailed using appropriate systems of risk-adjusted equalization payments among insurers. To develop these systems, predictors of individual utilization patterns have to be identified, e.g. via regression analysis using previous utilization data. In some countries such as Germany, such data are hardly ever available. In the early nineties, a number of sickness funds participated in an experiment in which individual utilization data were collected. Our data set covers more than 70,000 members of company sickness funds over a 5-year period. We analyze socio-demographic determinants of utilization which could be used as risk adjusters in a risk equalization scheme. Our results suggest that besides age and sex, the set of risk adjusters should include income, family status and a dummy for the last year of life.
Adolescent↗
Assessment of autonomic neurotoxicity in occupational and environmental health as determined by ECG R-R interval variability: a review.
Measurement of heart rate variability (coefficient of variation of ECG R-R intervals, CVRR) provides a useful approach for the objective assessment of the autonomic nervous function. It is noninvasive and clinically practical, although it tends to be distorted by confounding factors such as age, alcohol, and tobacco. Specifically, two component coefficients of variation of the respiratory sinus arrhythmia (RSA) and Mayer wave-related sinus arrhythmia (MWSA) in the CVRR (i.e., C-CVRSA and C-CVMWSA), computed from component spectral powers by autoregressive spectral and component analyses, are expected to reflect parasympathetic and sympathetic functions, respectively. This article is intended to present an overview of research, utilizing the CVRR method including the C-CVRSA and C-CVMWSA, in occupational and environmental health. The available literature, addressing the impact of some chemicals and work-related factors on human autonomic nervous system, indicates that parasympathetic activity appears to be more vulnerable to these factors than does sympathetic activity. Since decreased cardiac vagal tone is associated with an increased risk of sudden cardiac death or coronary artery disease, attention should be directed to further discovery of hazardous factors in the environment and work place, which are likely to affect the autonomic nervous system.
Autonomic Nervous System↗
Accuracy of blood loss determination by health care professionals.
Patients undergoing surgery will likely experience some degree of blood loss. There is much literature examining effects of blood loss, but little was found that examined accuracy of estimation of blood loss. The research question for this study was: How accurate are surgical health care professionals in their estimations of blood loss? This study was a pre-experimental between-subject design that used a convenience sample of 85 volunteers who worked in the surgical and postsurgical units of a rural southern 450-bed hospital. The participants viewed 1 of 3 randomly chosen samples of laparotomy pads with variable amounts of blood and saline. Only the researchers knew the exact amount contained on the pads. The variables that were examined and were compared included the professional group, years of experience in surgery or the postanesthesia care unit (PACU), and their estimation of blood loss. Their estimation of blood loss was compared with the actual amount of blood to determine whether one group was more accurate than another statistically and whether increasing years of experience improved accuracy. The statistical tests used were simple and multiple regressions.
Anesthesiology↗
Can the family still cope? Social support and health as determinants of nursing home use in the older Mexican-origin population.
OBJECTIVES: This article examines the impact of disability, cognitive status, and social support on nursing home use in a sample of older Mexican Americans. METHOD: We used four waves of the Hispanic Established Populations for Epidemiologic Studies of the Elderly (H-EPESE), a longitudinal study of 3,050 older Mexican Americans living in the Southwest initially contacted in 1993 to 1994. RESULTS: The findings reveal that advanced age, being a man, activities of daily living disability, and cognitive impairment are strong predictors of institutionalization and death. Living with family, arriving in the United States in late life, and access to social support independently decreased the probability of dying in a nursing home. DISCUSSION: Although it is clear that adequate social support can make it possible for an impaired older person to remain in the community serious impairment can eventually overwhelm even a supportive network and result in the institutionalization of an impaired older person.
Activities of Daily Living↗
Underlying aortic pathology and clinical health status determine success of endovascular stent-grafting for descending thoracic aortic disease.
Despite advances in medical and surgical treatment, acute as well as chronic diseases of the thoracic aorta are still associated with a high mortality. For the descending thoracic aorta, endovascular stent-graft placement competes with surgical therapy for clinical outcome. From July 1999 till December 2004, a total of 84 patients (64 +/- 14 years) with aortic disease of the descending thoracic aorta were treated. Nine patients had acute (AAD) and 35 chronic aortic dissection (AD), 16 had thoracic aortic aneurysms (TAA), 21 had penetrating aortic ulcer (PAU), and 3 patients had traumatic dissection (trans). Initial clinical status was assessed using the American Society of Anesthesiologists (ASA) classification. Fifty-three patients were in class 2, 16 in class 3, 8 in class 4, and 7 in class 5. Stent-graft placement was performed in the cardiac catheterization laboratory with the patient under general anesthesia. Technical success was obtained in 81/84 patients (96%). Within 30 days, seven patients (8%) died, four of them due to aortic rupture. In 14 patients, additional stent-grafts had to be implanted due to type I endovascular leakage (n = 5) or additional entry site adding up to a total of 107 implanted stent-grafts. During a follow-up period of 21 +/- 18 months, 17 additional patients died (22%). In 10 patients, death was disease- or procedure-related (13%). This long-term mortality depended on the underlying disease and was highest in the group with TAA (45%) followed by AAD (38%) and AD (18%). Patients in ASA class 4 and 5 had a significantly worse outcome. No aortic-related death occurred among patients with PAU or traumatic transsections. Overall, there was only one transient neurological deficit. Endovascular stent-graft placement has acceptable results in the treatment of patients with disease of the descending thoracic aorta. The outcome strongly depends on the underlying aortic pathology and the clinical health status of the patients. Randomized trials are necessary in order to establish the exact value of this new therapeutic option.
Adult↗
Medical anthropology: insights into the social, political, and economic determinants of health.
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Global Health↗
Ethnic and socioeconomic factors as determinants of health status.
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Cardiovascular Diseases↗
The need for an interdisciplinary perspective on the social determinants of health.
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Animals↗
Public and private pharmaceutical spending as determinants of health outcomes in Canada.
Canadian per capita drug expenditures increased markedly in recent years and have become center stage in the debate on health care cost containment. To inform public policy, these costs must be compared with the benefits provided by these drugs. This paper measures the statistical relationship between drug spending in Canadian provinces and overall health outcomes. The analysis relies on more homogenous data and includes a more complete set of controls for confounding factors than previous studies. Results show a strong statistical relationship between drug spending and health outcomes, especially for infant mortality and life expectancy at 65. This relationship is almost always stronger for private drug spending than for public drug spending. The analysis further indicates that substantially better health outcomes are observed in provinces where higher drug spending occurs. Simulations show that if all provinces increased per capita drug spending to the levels observed in the two provinces with the highest spending level, an average of 584 fewer infant deaths per year and over 6 months of increased life expectancy at birth would result.
Aged↗