OBJECTIVE: The aim of this study was to investigate the use of hormone replacement therapy (HRT) in Iceland in 1979-1995.
MATERIAL AND METHODS: The data used were based on answers to a questionnaire for women who attended screening for cervical and breast cancer at the Cancer Detection Clinic of the Icelandic Cancer Society. More than 95% of all Icelandic women in the age groups investigated attended screening during the period and participated in the study.
RESULTS: Use of HRT increased for each new and younger birth cohort and in the youngest cohort 52% had ever used HRT. The use was most common in the age group 50-55 and 50% of these women were using HRT at time of attendance in 1995 which is 5.7 fold increase from 1986 (p