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Related Experiment Videos

Oral contraceptive use: interview data versus pharmacy records.

S E Norell1, G Boethius, I Persson

  • 1Department of Pulmonary Medicine, Ostersund Hospital, Sweden.

International Journal of Epidemiology
|February 19, 1999
PubMed
Summary

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Women often underreport oral contraceptive (OC) use, but interviews and pharmacy records largely agree on usage patterns. Pharmacy data is better for specific past OC types due to underreporting in interviews.

Area of Science:

  • Reproductive health
  • Pharmacoepidemiology
  • Medical sociology

Background:

  • Recall bias may influence reported health effects of oral contraceptive (OC) use due to women's tendency to forget or underreport past usage.
  • Disease presence can enhance recall in cases, potentially skewing results.

Purpose of the Study:

  • To compare the accuracy of two data sources for assessing lifetime oral contraceptive (OC) use.
  • To evaluate potential recall bias in women's self-reported OC history.

Main Methods:

  • A community-based sample of 511 women aged 20-34 was studied.
  • Lifetime OC use was assessed via structured interviews with memory aids and compared against pharmacy prescription records.

Main Results:

Keywords:
Acceptors--womenBiasComparative StudiesContraceptionContraceptive MethodsContraceptive Usage--womenData CollectionData SourcesDeveloped CountriesError SourcesEuropeFamily PlanningFamily Planning ProgramsMeasurementNorthern EuropeOral ContraceptivesResearch MethodologyResearch ReportSampling StudiesScandinaviaStudiesSurveysSweden

Related Experiment Videos

  • High agreement was found between interview and pharmacy data for overall OC use, current use, timing, and duration.
  • A tendency for underreporting specific types of past OC use was observed in interviews.

Conclusions:

  • Interviews provide reliable data for current OC use and overall usage patterns.
  • Pharmacy records are superior for detailing specific types of oral contraceptives used historically, mitigating underreporting bias.