| Titre : | Validity of age at menarche self-reported in adulthood. (2006) |
| Auteurs : | R. COOPER ; S. BLACK ; M. BLELL ; R. Hardy ; D. KUH ; PEARCE (M.S.) : GBR. Paediatric and Lifecourse Epidemiology Research Group. School of Clinical Medical Sciences. University of Newcastle upon Tyne. Newcastle upon Tyne. ; T.M. POLLARD ; M.E.J. WADSWORTH ; University College London. Department of Epidemiology and Public Health. Mrc National Survey of Health and Development. London. GBR ; University of Durham. Department of Anthropology. Durham. GBR |
| Type de document : | Article |
| Dans : | Journal of epidemiology and community health (vol. 60, n° 11, 2006) |
| Pagination : | 993-997 |
| Langues: | Anglais |
| Mots-clés : | Age ; Autoquestionnaire ; Autoévaluation ; Adulte ; Homme ; Evolution ; Questionnaire ; Femme |
| Résumé : | [BDSP. Notice produite par INIST-CNRS JPR0xZXR. Diffusion soumise à autorisation]. Objective : To test the validity of age at menarche self-reported in adulthood and examine whether socioeconomic position, education, experience of gynaecological events and psychological symptoms influence the accuracy of recall. Design : Prospective birth cohort study. Setting : England, Scotland and Wales. Participants : 1050 women from the Medical Research Council National Survey of Health and Development, with two measures of age at menarche, one recorded in adolescence and the other self-reported at age 48 years. Results : By calculating the limits of agreement, K statistic and Pearson's correlation coefficients (r), we found that the validity of age at menarche self-reported in middle age compared with that recorded in adolescence was moderate (K=0.35, r=0.66, n=1050). Validity was improved by categorising age at menarche into three groups : early, normal and late (K=0.43). Agreement was influenced by educational level and having had a stillbirth or miscarriage. Conclusions : The level of validity shown in this study throws some doubt on whether it is justifiable to use age at menarche self-reported in middle age. It is likely to introduce error and bias, and researchers should be aware of these limitations and use such measures with caution. |
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