A case-control study, like other medical research, can help scientists find new medications and treatments. Find out how 'cases' are compared with 'controls' in this type of study. This type of ...

Power and sample size calculations are critical parts of any research design for genetic association. We present a method that utilizes haplotype frequency information and average marker-marker ...

Study Design and Study Sample We conducted a case-control study using the inpatient admission records of Robert Wood Johnson University Hospital (RWJUH) in New Brunswick, New Jersey.

In a nationally representative sample of 1.1 million homes, we compared the prevalence of smoking among 33,000 deceased women and 41,000 deceased men (case subjects) with the prevalence of smoking ...

Woolson, Bean, and Rojas (1986, Biometrics 42, 927-932) present a simple approximation of sample size for Cochran's (1954, Biometrics 10, 417-451) test for detecting association between exposure and ...

The aim of INTERHEART, a case-control study conducted in > 50 countries, was to determine the associations between a wide array of risk factors and AMI within populations defined by ethnicity and ...

Honolulu, Hawaii — More evidence that smoking cannabis is associated with an increased risk for stroke has come from a New Zealand study. The first case-control study to investigate this ...