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Maternal age, parity, and twin pregnancies
Progress in Clinical and Biological Research
|January 1, 1978
Summary
Maternal age and parity significantly influence twinning rates. Younger mothers show increased twinning with higher parity, while older mothers have high rates early, declining after four births.
Area of Science:
- Reproductive biology
- Obstetrics and Gynecology
- Human reproduction
Background:
- Twinning rates are influenced by various maternal factors.
- Understanding these factors is crucial for reproductive health.
- Previous studies have explored maternal age and parity's role.
Purpose of the Study:
- To investigate the association between maternal age, parity, and twinning.
- To analyze twinning rates across different maternal age groups and parities.
Main Methods:
- Analysis of 10,916 third-trimester deliveries.
- Statistical examination of twinning incidence in relation to maternal age and parity.
Main Results:
- Significant effects of maternal age and parity on twinning were observed.
- Younger mothers: low twinning at low parity, higher at high parity.
- Older mothers: high twinning from low parity, declining after parity 4.
Conclusions:
- Maternal age and parity are key determinants of twinning.
- Distinct patterns of twinning exist for younger and older mothers.
- These findings have implications for reproductive counseling and perinatal care.