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Reproducibility of ...
Reproducibility of a self-administered questionnaire for assessment of melanoma risk
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- Westerdahl, J (author)
- Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Anderson, H (author)
- Lund University,Lunds universitet,Medicinsk onkologi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical oncology,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Olsson, Håkan (author)
- Lund University,Lunds universitet,Medicinsk onkologi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumörmikromiljö,Institutionen för kliniska vetenskaper, Lund,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Medical oncology,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Tumor microenvironment,Department of Clinical Sciences, Lund,Lund Melanoma Study Group,Lund University Research Groups
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- Ingvar, C (author)
- Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund Melanoma Study Group,Lund University Research Groups
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(creator_code:org_t)
- 1996
- 1996
- English.
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In: International Journal of Epidemiology. - 0300-5771. ; 25:2, s. 245-251
- Related links:
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Abstract
Subject headings
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- BACKGROUND: The reproducibility of a self-administered questionnaire on different epidemiological variables was examined in a random sample of a cohort of healthy women from the South Swedish Health Care Region. An identical questionnaire has previously been used for assessment of melanoma risk, in a population-based, matched, case-control study from the same region.METHODS: Repeat questionnaires were completed on two occasions, 1-3 years apart, by 670 randomly selected subjects. In addition, exposure data from a case-control study were used to estimate the effect of misclassification.RESULTS: Overall, there was a fair to good consistency between the answers on the two occasions for the various epidemiological variables. Exposure variables identified as risk factors for melanoma development were reasonably reproducible. The estimated proportion of agreement, A, ranged from 0.74 to 0.92, the average correct classification rate (assuming common sensitivity and specificity), pi, was > or = 0.85 and the kappa coefficient, kappa, ranged between 0.52 and 0.83. However, the question on number of raised naevi on the arm was an exception since it had a lower test-retest reliability (A = 0.62, pi = 0.77, kappa = 0.40). When using data from the case-control study, the effect of the estimated random misclassification was found to only slightly bias odds ratios toward one.CONCLUSION: Our questionnaire, used for assessment for melanoma risk, provided information with fair to good test-retest reliability, and corrected odds ratios were found to be only slightly higher than observed odds ratios.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- Adolescent
- Adult
- Aged
- Bias (Epidemiology)
- Case-Control Studies
- Cohort Studies
- Female
- Humans
- Melanoma
- Middle Aged
- Odds Ratio
- Population Surveillance
- Reproducibility of Results
- Risk Factors
- Sensitivity and Specificity
- Skin Neoplasms
- Surveys and Questionnaires
- Sweden
Publication and Content Type
- art (subject category)
- ref (subject category)
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