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PROLONGED BIRTH INTERVALS IN HAMEDAN, IRAN: VARIATIONS AND DETERMINANTS
Amir Erfani1, Marzieh Nojomi2, Hatam Hosseini3
1*Department of Sociology & Anthropology,Nipissing University,Ontario,Canada.
Journal of Biosocial Science
|June 20, 2017
Summary
Fertility in Iran has declined due to changes in birth timing. Increased contraceptive use and education significantly lengthen birth intervals, impacting maternal and child health outcomes.
Area of Science:
- Demography
- Public Health
- Sociology
Background:
- Iran's fertility rate is below replacement level.
- Changes in birth timing are a key driver of this demographic shift.
Purpose of the Study:
- To examine variations in birth interval lengths.
- To investigate the determinants of birth interval lengths in Iran.
Main Methods:
- Utilized data from the 2015 Hamedan Survey of Fertility (3000 married women aged 15-49).
- Employed cumulative survival functions and regression hazard models.
Main Results:
- Median birth intervals (first, second, third) doubled between 1995 and 2015.
- Contraceptive use and higher education significantly lengthened birth intervals, especially for second and third births.
- Factors like rural migration, unemployment, shorter breastfeeding, and child mortality influenced birth intervals; son preference affected only third births.
Conclusions:
- Findings highlight the impact of socioeconomic factors and family planning on fertility trends in Iran.
- Results have implications for low fertility and improving maternal and child health services.
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