Results 221 to 230 of about 3,245,764 (246)
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American Journal of Epidemiology, 1981
A financial review of five case-control studies concerning the relationship of birth control methods to the occurrence of disease was conducted. The review had two major objectives: first, to identify costs associated with the planning, conduct and analysis of case-control studies; second, to assess whether sample size determination based on optimal ...
E, Brittain +2 more
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A financial review of five case-control studies concerning the relationship of birth control methods to the occurrence of disease was conducted. The review had two major objectives: first, to identify costs associated with the planning, conduct and analysis of case-control studies; second, to assess whether sample size determination based on optimal ...
E, Brittain +2 more
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The Case-Control Study in Psychiatry
British Journal of Psychiatry, 1990Case-control studies involve ‘cases' being compared to ‘controls' with respect to ‘exposures', possible aetiological (or associated) factors. Associations between a disease and an exposure can be explained by chance, reverse causality, confounding and biases or, lastly, by causality.
G, Lewis, A J, Pelosi
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Case-Control Studies of Screening
International Journal of Epidemiology, 1991The application of case-control studies to the evaluation of screening data presents a number of potential problems. In particular, the results are liable to be affected by selection bias. Published case-control studies of breast cancer screening are reviewed in the light of the results of a recent UK study of somewhat different design which attempts ...
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Case‐control studies and bayesian inference
Statistics in Medicine, 1986AbstractWe outline the methods of Bayesian inference for applications to case‐control studies. These methods appear as the natural way of making inferences, since much of the controversy that surrounds a specific case‐control study is subjective. We derive conjugate prior distributions of exposure, posterior distributions of the ratio of the odds of ...
M, Zelen, R A, Parker
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A Case-Control Study of Intrapartum Stillbirths
Obstetrical & Gynecological Survey, 1992ABSTRACTObjective To determine antenatal and intrapartum risk factors for intrapartum stillbirths in a total population.Design Matched case‐control study.Setting Western Australia 1980–1983.Subjects Intrapartum stillbirths of ≥ 1000 g birthweight (cases) and liveborn infants (controls) individually matched for year of birth ...
L M, Alessandri, F J, Stanley, A W, Read
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The evolving case-control study
Journal of Chronic Diseases, 1979Publisher Summary This chapter discusses the limitations in the understanding of case-control study and suggests the areas where new knowledge should improve the technique. Epidemiology is defined as “the science of disease occurrence.” It is the science that deals with the environmental causes of diseases of humans as inferred from observations of ...
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BMJ, 2010
The association between suicide and the use of calcium channel blockers in people with hypertension was investigated using a nested case-control study design.1 Data were taken from the general practice research database, a computerised database of anonymised longitudinal medical records collected prospectively in primary care. The cohort of people with
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The association between suicide and the use of calcium channel blockers in people with hypertension was investigated using a nested case-control study design.1 Data were taken from the general practice research database, a computerised database of anonymised longitudinal medical records collected prospectively in primary care. The cohort of people with
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Preventive Medicine, 1994
The nested case-control study design (or the case-control in a cohort study) is described here and compared with other designs, including the classic case-control and cohort studies and the case-cohort study. In the nested case-control study, cases of a disease that occur in a defined cohort are identified and, for each, a specified number of matched ...
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The nested case-control study design (or the case-control in a cohort study) is described here and compared with other designs, including the classic case-control and cohort studies and the case-cohort study. In the nested case-control study, cases of a disease that occur in a defined cohort are identified and, for each, a specified number of matched ...
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On the Design of Synthetic Case-Control Studies
Biometrics, 1986A design is proposed for "case-control within cohort" studies. In this design, controls are sampled without replacement from failure-free members of the cohort at each distinct failure time. Upon selection, a subject ceases to be eligible for control selection at later failure times.
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