Validity of self-reports of fractures in perimenopausal women

The validity of self-report of fractures in postal inquiry among perimenopa usal women was evaluated. Self-reports of fractures in the 1989 baseline po stal inquiry data of the Kuopio Osteoporosis Risk Factor and Prevention Stu dy (OSTPRE) were compared with information in patient records. The study po pulation consisted of 373 women who reported fractures sustained during the last 10 years and 200 randomly selected women who did not report fractures from a population base of 2,007 women aged 47-56 years. Self-report as a s creening test for fracture was evaluated in the total sample of 2,007 women by estimating the number of false negative reports in all the women who di d not report a fracture with the information on these 200 women. Of the sel f-reports of fractures, 84% proved to be true fractures, 12% soft tissue in juries, and the rest either self-diagnoses or misnomers, Self-report of wri st fracture was more accurate (95%). The sensitivity of self-report to dete ct fracture was 78% for all fractures and 95% for wrist fracture, while the respective specificities were 96 and 99%, Self-report is a relatively accu rate way to obtain information about past major fractures in perimenopausal women. However, it is rather insensitive in the detection of minor fractur es, if the reporting period is several years.