What question did this study set out to answer?

To investigate the direct and independent effects of maternal smoking, alcohol, caffeine intake, socioeconomic status, and psychosocial stress on birth weight adjusted for gestational age.

March 25, 1989BMJOpen Access

Effects on birth weight of smoking, alcohol, caffeine, socioeconomic factors, and psychosocial stress.

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Authors

OBO G BrookeWeifang Medical University HAH R AndersonSt George's, University of London MBMartin BlandUniversity of Stirling

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Implication

Prospective population study finds smoking is the primary driver of reduced birth weight in pregnant women, indicating minimal direct impact from socioeconomic or psychosocial stress.

Key Points

To investigate the direct and independent effects of maternal smoking, alcohol, caffeine intake, socioeconomic status, and psychosocial stress on birth weight adjusted for gestational age.
Prospective population study tracking a consecutive series of 1,513 eligible white women booking for delivery at an inner London district hospital.
Data gathered at booking and at 17, 28, and 36 weeks of gestation assessing substance intake and over 40 socioeconomic and psychosocial indicators.
Birth weight was corrected for gestational age and adjusted for maternal height, parity, and infant sex.
Active maternal smoking was the single most impactful factor, leading to a 5% reduction in corrected birth weight, while passive smoking produced a non-significant 0.5% reduction.
After controlling for smoking, the adverse effects of caffeine and the four initially significant socioeconomic and stress variables became non-significant, while alcohol reduced birth weight only in active smokers.

Cite This Study

Brooke et al. (1989) studied this question.

synapsesocial.com/papers/6a1e0563cd67cee37335237c https://doi.org/10.1136/bmj.298.6676.795

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Implication

Prospective population study finds smoking is the primary driver of reduced birth weight in pregnant women, indicating minimal direct impact from socioeconomic or psychosocial stress.

Effects on birth weight of smoking, alcohol, caffeine, socioeconomic factors, and psychosocial stress.

Discussion

Member takes

Implication

Key Points

Cite This Study

Effects on birth weight of smoking, alcohol, caffeine, socioeconomic factors, and psychosocial stress.

Discussion

Member takes

Implication

Key Points

Cite This Study

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