A longitudinal study of contraception and pregnancies in the same women followed for a quarter of a century
Authors: Lindh, Ingela; Andersson Ellstrm, Agneta; Blohm, Febe; Milsom, Ian
Source: Human Reproduction, Volume 25, Number 6, 8 June 2010 , pp. 1415-1422(8)
Publisher: Oxford University Press
There is a need to improve our understanding of contraceptive use over the long term. The aims of this study were to describe contraceptive use and pregnancies in the same women followed prospectively from 19 to 44 years of age.
In 1981, a postal questionnaire about contraception, pregnancies and reproductive health was sent to a random sample (n 656) of 19-year-old women resident in Gothenburg, Sweden. The responders were contacted again every fifth year.
At 19 years of age, 74 of the women had already used contraception and this increased to 98 at 44 years. Combined oral contraception was the commonest method currently used up to 29 years of age (48/51/22 at 19/24/29 years of age, respectively) and thereafter an intrauterine device (IUD: 34/39/38 at 34/39/44 years of age, respectively). Condom use alone during the 25-year study period was: 14/12/24/21/21/15 and non-use of contraception was: 35/24/26/20/21/26. The mean number of pregnancies/children increased from 0.2/0.1 at 19 years of age to 3.1/2.1 at 44 years. Women who had been pregnant and women who had not been pregnant 19 years of age were compared up to 44 years of age (months of OC use: 69/107, P < 0.01; months of IUD use: 126/91, P < 0.01; 4.2/2.9 pregnancies, P < 0.001; 2.5/2.1 children, P< 0.09).
Choice of contraception was strongly related to age and parity, and the cumulative total number of pregnancies at 44 years of age, and contraceptive choice was related to age at first pregnancy.
Document Type: Research Article
Publication date: 2010-06-08
- Human Reproduction features full-length, peer-reviewed papers reporting original research, clinical case histories, as well as opinions and debates on topical issues. Papers published cover the scientific and medical aspects of reproductive physiology and pathology, endocrinology, andrology, gonad function, gametogenesis, fertilization, embryo development, implantation, pregnancy, genetics, genetic diagnosis, oncology, infectious disease, surgery, contraception, infertility treatment, psychology, ethics and social issues. The highest scientific and editorial standard is maintained throughout the journal along with a rapid rate of publication.