AI Article Synopsis
- The study examined how maternal sleep duration affects the birth weight of newborns, using data from 2536 mother-neonate pairs in a Spanish birth cohort from 2004-2006.
- Results showed that mothers who slept less than 7 hours saw an increase in birth weight by about 44.7 grams for each extra hour of sleep, though this was not significant after accounting for other factors.
- Conversely, mothers who slept more than 9 hours experienced a decrease in birth weight by 39.2 grams for each additional hour of sleep, indicating that both insufficient and excessive sleep can negatively impact newborn health.
Article Abstract
Objective: To investigate the association between maternal sleep duration (an important health indicator) and neonate birth weight.
Methods: The study included 2536 mother-neonate pairs of a Spanish birth cohort (2004-2006, INMA project). The exposures were questionnaire-based measures of sleep duration before and during pregnancy. The primary outcome was neonate birth weight score (g) standardized to 40 weeks of gestation.
Results: In women sleeping for <7 h/day before pregnancy, each additional hour of sleep increased birth weight score by 44.7 g (P = 0.049) in the minimally adjusted model, although findings were not statistically significant after considering other potential confounders (P > 0.05). However, increasing sleep duration for the group of mothers who slept for more than 9 h/day decreased birth weight score by 39.2 g per additional hour (P = 0.001). Findings were similar after adjusting for several sociodemographic confounders and maternal depression-anxiety clinical history as an intermediate factor. Similar but attenuated associations were observed with sleep duration in the second trimester of pregnancy.
Conclusion: The relationship between maternal sleep duration before and during pregnancy and neonate birth weight is an inverse U-shaped curve. Excessive sleep duration may adversely affect neonate health through its impact on birth weight.
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| http://dx.doi.org/10.1002/ijgo.13685 | DOI Listing |
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