confounding

Tampons and Toxic Shock Syndrome

The initial outbreak investigations of toxic shock syndrome in 1980 using a series of matched case-control studies.  Case study focuses on matching, secondarily on surveillance.

 

Objectives:

  • Describe the concepts, applications, and limitations of matching in case-control studies;
  • Analyze matched case-control data; and
  • Discuss the issues involved in appropriate selection of controls in case-control studies.
Investigation: 
Outbreak
Country: 
United States
Year: 
1983
Author (s): 

Richard Dicker and Ruth Berkelman

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Oral Contraceptive Use and Ovarian Cancer ("OCs and Ovarian Cancer")

One of the first studies to address the association between oral contraceptive use and ovarian cancer; conducted by CDC using a multicenter case-control study design, 1980‑1982

 

Objectives:

Investigation: 
Other
Country: 
United States
Year: 
1981
Author (s): 

Richard Dicker and Peter Layde

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