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Association between Breastfeeding and Restrictive Spirometric Pattern in Women Aged over 40 Years: A Cross-Sectional
Hyeokjoo Jang1, Sebin Kwon1, Bumyeol Lee1
1College of Medicine, Yonsei University, Seoul 03722, Republic of Korea.
Breastfeeding for at least one month was linked to a lower risk of restrictive spirometric pattern (RSP) in women over 40. Longer breastfeeding duration further reduced this risk, suggesting a beneficial impact on maternal lung health.
Area of Science:
- Pulmonary Medicine
- Obstetrics and Gynecology
- Epidemiology
Background:
- Restrictive spirometric pattern (RSP) affects nearly 10% of parous women over 40, correlating with adverse health outcomes.
- The impact of breastfeeding on maternal pulmonary function, specifically RSP risk, is not well-established.
Purpose of the Study:
- To investigate the association between breastfeeding and the risk of restrictive spirometric pattern (RSP) in parous women.
- To determine if breastfeeding duration influences maternal pulmonary function.
Main Methods:
- Retrospective, cross-sectional study of 9261 parous women aged >40 from the Korea National Health and Nutrition Examination Survey (2013-2018).
- Restrictive spirometric pattern (RSP) defined by FEV1/FVC ratio and FVC; multivariate logistic regression used to calculate adjusted odds ratios (OR).
Main Results:
- 9.9% of participants had RSP. Breastfeeding (≥1 month) was associated with a reduced RSP risk (OR: 0.75 [0.60–0.92]).
- Increasing breastfeeding duration showed a significant trend towards lower RSP risk (p=0.0004).
- Women who breastfed had higher FEV1, FVC, and FVC% compared to non-breastfeeding women.
Conclusions:
- Breastfeeding is associated with improved maternal pulmonary function in parous women over 40.
- Breastfeeding appears to reduce the prevalence of restrictive spirometric pattern (RSP), indicating a potential protective effect on lung health.
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