[Hormone replacement therapy in Iceland.].
OBJECTIVE
The aim of this study was to investigate the use of hormone replacement therapy (HRT) in Iceland in 1979-1995.


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<0.001). Among users, 52% had used HRT for one year or less in 1979-1989 and 41% in 1990-1995 (p<0.001). In the latter period, 27% had used HRT for more than five years. Users of HRT were more likely to be smokers than non users (p<0.001).


CONCLUSIONS
Use of HRT is common in Iceland and has been increasing during the period 1979-1995.
Eliasson
J H
JH
Tryggvadottir
L
L
Tulinius
H
H
Gudmundsson
J A
JA