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Scand J Prim Health Care. 1993 Dec;11(4):252-62.

Reproducibility and validity of a postal questionnaire. The abdominal symptom study.

Author information

1
Uppsala University, Department of Family Medicine, Sweden.

Abstract

OBJECTIVE:

To find out whether it is possible to examine abdominal/gastrointestinal symptoms by a postal questionnaire.

DESIGN:

In the Abdominal Symptom Study a postal questionnaire was sent to a representative sample of adults (n = 1290) on two occasions, one year apart. The questionnaire was sent a third time to a subsample (n = 110), and to another sample (n = 213) who had not seen the questionnaire before. A subsample (n = 150 of the 1290) was subjected to a medical interview and examination.

SETTING:

The municipality of Osthammar, Sweden.

PARTICIPANTS:

A sample (9.3%) of all Swedish citizens (20-79 yrs) in the municipality.

MAIN OUTCOME MEASURE:

Reproducibility and validity of a postal questionnaire.

RESULTS:

The response rate was 90%. Roughly 50% of the study population reported abdominal symptoms. The reproducibility of the results was satisfactory, as was the validity of the questionnaire evaluated by medical interview and examination. Non-responders did not report more symptoms than responders.

CONCLUSION:

It is possible to examine abdominal/gastrointestinal symptoms with a postal questionnaire. The questionnaire used in The Abdominal Symptom Study seems to be useful for this purpose.

PMID:
8146509
DOI:
10.3109/02813439308994840
[Indexed for MEDLINE]

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