L’absentéisme hospitalier au Québec : aspects culturels et socio-démographiques

Cet article porte sur certains aspects de l'absentéisme en milieu hospitalier au Québec. L'intérêt principal ici réside dans la remise en question de certaines pratiques analytiques.Research on sociodemographical and cultural determinants of work absenteeism has been plagued with empirically inconsistent results. It has been suggested that the failure to analyze the data beyond a simple linear bivariate approach, as well as insufficient levels of aggregation (eg: individual without organizational units) is possibly responsible for the inconsistencies.This study was designed to demonstrate these deficiencies. Although the study is limited in scope, an attempt has been made to compare and contrast the different results that could be obtained when a linear, as opposed to interactive, approach is used. And further, it raises many questions concerning the adequacy of published research which attributes absenteeism to sociodemographical characteristics without delving into the real complexity of this phenomenon.Four hundred seven (407) subjects employed in six Québec hospitals, representing a wide variety of occupations, participated in this study. Personal and sociodemographical characteristics were obtained from questionnaires administered in the course of another research project carried out by the authors.The results show a significant difference in absenteeism depending on the level and type of the analysis performed. For example, it is found that the mean absence rate for the ' 'Francophone hospitals" was significantly higher than that of the "Anglophone hospitals". Cultural reasons are advanced to explain these differences.At the individual level of analysis, several findings emerge. First, it is shown that sex is an important determinant of absence behavior. Such finding is consistent with other published results, which point out that women have significantly higher rates of absence than men. Yet, when further analysis is undertaken, the concomitant effects of other related sociodemographic variables are more clearly revealed. For example, married women are absent more often than single women while the opposite tendency is found for men. The combined effect of sex and marital status may point to an explanation of absenteeism in terms of "family social responsibility". This explanation differs from that which might be advanced based on the simple analysis of each of these variables treated independently. Further, bivariate analysis of absence by the level of education, shows an inverse relationship between these two variables. However, when the same analysis is repeated, adjusting for sex, it is found that women have systematically higher rates of absence in each category of education. Other relationships found for income, age and absenteeism are also discussed in the text.The implications of the results are discussed in terms of a research strategy for the conduct of a sociodemographical and cultural study of absenteeism

253: The effect of statins on the risk of first non-fatal myocardial infarction: A population-based observational study using the PGRx information system

BackgroundDespite demonstrated positive effects in a number of clinical trials, the evidence is lacking as to the impact of statins on the risk of first myocardial infarction (MI) in real life settings.ObjectivesTo assess the impact of real life statin utilization on the risk of first non-fatal MIMethodsCase-control methodology using the pharmacoepidemiological information system PGRx. Data on comorbidities, risk factors and medications were obtained from medical records and patient telephone interviews. General practices (n=371) and cardiology centres (n=60) across France were employed in the study. Cases were patients with the first MI ≤ 1 month before the date of recruitment (n=2238). Controls were patients seen by a general practitioner (GP) with no restriction as to the reasons of consultation (n=2238), matched to MI cases on gender, age, frequency of visits to a doctor, date of recruitment and personal history of non-cardiovascular chronic disease. Statin exposure was defined as any utilisation in the two-year prior to date of MI in cases or recruitment date in controls. Adjusted odds ratios (OR) of the risk of first MI was estimated by multiple conditional logistic regression models. Comparative effectiveness and propensity to use of individual statin molecules were assessed.ResultsThe use of statins was associated with a lower MI risk (adjusted OR 0.67 [95% CI 0.56 - 0.79] for current use (within 2 months before the index date) and 0.73 [0.62 0.86] for any use within 24 months). Among individual statins, rosuvastatin was associated with the lowest MI risk (adjusted OR 0.49 [0.35 - 0.68] for any use in 24 months preceding the index date) followed by simvastatin (0.62 [0.46 - 0.84]).ConclusionsIn this first major population-based observational study we reproduced the results observed in recent meta-analyses accounting for real life compliance and population variability. The results could be of interest and applicable to other industrialised countries as the observed risk reduction was constant across MI risk levels

Benchmarking clinical management of spinal and non-spinal disorders using quality of life: results from the EPI3-LASER survey in primary care

Concerns have been raised regarding sub-optimal utilization of analgesics and psychotropic drugs in the treatment of patients with chronic musculoskeletal disorders (MSDs) and their associated co-morbidities. The objective of this study was to describe drug prescriptions for the management of spinal and non-spinal MSDs contrasted against a standardized measure of quality of life. A representative population sample of 1,756 MSDs patients [38.5% with spinal disorder (SD) and 61.5% with non-spinal MSDs (NS-MSD)] was drawn from the EPI3-LASER survey of 825 general practitioners (GPs) in France. Physicians recorded their diagnoses and prescriptions on that day. Patients provided information on socio-demographics, lifestyle and quality of life using the Short Form 12 (SF-12) questionnaire. Chronicity of MSDs was defined as more than 12 weeks duration of the current episode. Chronic SD and NS-MSD patients were prescribed less analgesics and non-steroidal anti-inflammatory drugs than their non-chronic counterpart [odds ratios (OR) and 95% confidence intervals (CI), respectively: 0.4, 0.2–0.7 and 0.5, 0.3–0.6]. They also had more anxio-depressive co-morbidities reported by their physicians (SD: 16.1 vs.7.4%; NS-MSD: 21.6 vs. 9.5%) who prescribed more antidepressants and anxiolytics with a difference that was statistically significant only for spinal disorder patients (OR, 95% CI: 2.0, 1.1–3.6). Psychotropic drugs were more often prescribed in patients in the lower quartile of SF-12 mental score and prescriptions of analgesics in the lower quartile of SF-12 physical score (P < 0.001). In conclusion, anxiety and depressive disorders were commonly reported by GPs among chronic MSD patients. Their prescriptions of psychotropic and analgesic drugs were consistent with patients’ self-rated mental and physical health

The 'RCT augmentation': a novel simulation method to add patient heterogeneity into phase III trials.

BACKGROUND: Phase III randomized controlled trials (RCT) typically exclude certain patient subgroups, thereby potentially jeopardizing estimation of a drug's effects when prescribed to wider populations and under routine care ('effectiveness'). Conversely, enrolling heterogeneous populations in RCTs can increase endpoint variability and compromise detection of a drug's effect. We developed the 'RCT augmentation' method to quantitatively support RCT design in the identification of exclusion criteria to relax to address both of these considerations. In the present manuscript, we describe the method and a case study in schizophrenia. METHODS: We applied typical RCT exclusion criteria in a real-world dataset (cohort) of schizophrenia patients to define the 'RCT population' subgroup, and assessed the impact of re-including each of the following patient subgroups: (1) illness duration 1-3 years; (2) suicide attempt; (3) alcohol abuse; (4) substance abuse; and (5) private practice management. Predictive models were built using data from different 'augmented RCT populations' (i.e., subgroups where patients with one or two of such characteristics were re-included) to estimate the absolute effectiveness of the two most prevalent antipsychotics against real-world results from the entire cohort. Concurrently, the impact on RCT results of relaxing exclusion criteria was evaluated by calculating the comparative efficacy of those two antipsychotics in virtual RCTs drawing on different 'augmented RCT populations'. RESULTS: Data from the 'RCT population', which was defined with typical exclusion criteria, allowed for a prediction of effectiveness with a bias < 2% and mean squared error (MSE) = 5.8-6.8%. Compared to this typical RCT, RCTs using augmented populations provided improved effectiveness predictions (bias < 2%, MSE = 5.3-6.7%), while returning more variable comparative effects. The impact of augmentation depended on the exclusion criterion relaxed. Furthermore, half of the benefit of relaxing each criterion was gained from re-including the first 10-20% of patients with the corresponding real-world characteristic. CONCLUSIONS: Simulating the inclusion of real-world subpopulations into an RCT before running it allows for quantification of the impact of each re-inclusion upon effect detection (statistical power) and generalizability of trial results, thereby explicating this trade-off and enabling a controlled increase in population heterogeneity in the RCT design

Evaluation of outcomes in chronic venous disorders of the leg: development of a scientifically rigorous, patient-reported measure of symptoms and quality of life.

OBJECTIVE: The purpose of this study was to develop a practical and scientifically rigorous, patient-reported outcome measure to evaluate quality of life and symptoms across the range of conditions (eg, telangiectasias, varicose veins, edema, skin changes, leg ulcers) in chronic venous disorders of the leg (CVDL). METHODS: This study was a psychometric study within the VEnous INsufficiency Epidemiological and Economic Study (VEINES), an international, prospective cohort study to evaluate clinical outcomes, quality of life, costs, and use of health services in CVDL. The study was set in the 166 general practices and 116 specialist clinics in Belgium, France, Italy, and Canada (Quebec) that participated in the VEINES study plus in additional specialist clinics in Ottawa and Montreal. Field testing was carried out in three samples of patients in four countries (Belgium, France, Italy, Canada), including participants in the VEINES study (n dagger 1531) and patients recruited in additional samples of 88 English-speaking patients (Canada) and 53 French-speaking patients (Belgium, France). The reliability and validity sample (n = 615) included 527 VEINES patients and 88 patients from the supplementary English-speaking sample. The test-retest sample (n = 135) included 53 French-speaking and 82 English-speaking patients from the supplementary samples. The responsiveness sample included 1516 VEINES patients. The 26-item VEINES-QOL/Sym is a new, patient-reported questionnaire to evaluate symptoms and quality of life and is available in four language versions (English, French, Italian, French Canadian). RESULTS: Standard psychometric tests confirmed the acceptability (missing data, item endorsement frequencies, floor and ceiling effects), reliability (internal consistency, item-total, inter-item correlations) and validity (content, construct, convergent, discriminant, known groups) of the four language versions of the VEINES-QOL/Sym and the test-retest reliability of the English and French versions and provided preliminary evidence of responsiveness in a pooled language sample. CONCLUSION: The VEINES-QOL/Sym is a practical and scientifically sound, patient-reported measure of outcomes in CVDL that has been developed with rigorous methods. As the only fully validated measure of quality of life and symptoms that is appropriate for use across the full spectrum of CVDL-related conditions, that is quick and easy to administer, and that is available in four languages, the VEINES-QOL/Sym provides a rigorous tool for improving the evaluation of outcomes in clinical trials, epidemiologic studies, and audit