Related Experiment Videos
Reproductive patterns among Swedish women born 1936-1960
U Högberg1, A Sandström, N G Nilsson
1Department of Obstetrics & Gynecology, Umeå University, Sweden.
Acta Obstetricia Et Gynecologica Scandinavica
|April 1, 1992
Summary
Reproductive performance in women shows sustained fecundability into the 30s. Infertility rates were 6.6% primary and 11.0% secondary, with primary infertility linked to education and lifestyle factors.
Area of Science:
- Reproductive Epidemiology
- Demography
- Public Health
Background:
- Understanding long-term reproductive trends is crucial for public health.
- Factors influencing fecundability and infertility require ongoing investigation.
Purpose of the Study:
- To analyze reproductive performance in a large cohort of Swedish women.
- To identify trends in fecundability, pregnancy rates, and infertility.
- To explore demographic and lifestyle factors associated with infertility.
Main Methods:
- Cross-sectional survey of 4,299 women born between 1936-1960.
- Analysis of reproductive performance, including fecundability and infertility.
- Statistical examination of factors influencing infertility.
Main Results:
- Fecundability in women aged 30-39 was only 12% lower than in women under 29.
- Cumulative pregnancy rates ranged from 93-96% annually.
- Primary infertility affected 6.6% and secondary infertility 11.0% of the cohort.
- Primary infertility was associated with higher education, urban living, and early age at first coitus.
- Spontaneous abortion risk increased with maternal age.
Conclusions:
- Reproductive capacity remains significant in women's 30s.
- Infertility is influenced by socioeconomic and behavioral factors.
- Maternal age is a key determinant for spontaneous abortion risk.