Respiratory outcomes in early childhood following antenatal vitamin C and E supplementation

被引:56
作者
Greenough, Anne [1 ,2 ]
Shaheen, Seif O. [3 ]
Shennan, Andrew [4 ]
Seed, Paul T.
Poston, Lucilla [5 ]
机构
[1] Kings Coll London, MRC, Div Asthma Allergy & Lung Biol, London WC2R 2LS, England
[2] Kings Coll London, Asthma UK Ctr Allerg Mech Asthma, London WC2R 2LS, England
[3] Barts & London Queen Marys Sch Med & Dent, Ctr Hlth Sci, London, England
[4] Kings Coll London, Dept Womens Hlth, Maternal & Fetal Res Unit, London WC2R 2LS, England
[5] Kings Coll London, Div Reprod & Endocrinol, Maternal & Fetal Res Unit, London WC2R 2LS, England
基金
英国惠康基金;
关键词
CHRONIC LUNG-DISEASE; RANDOMIZED-TRIALS; ANTIOXIDANT INTAKE; PREGNANT-WOMEN; CHILDREN; INFANTS; SYMPTOMS; HEALTH; ASTHMA; LIFE;
D O I
10.1136/thx.2010.139915
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
Background Prenatal antioxidant supplementation might influence fetal lung growth and development and reduce infant respiratory morbidity. The aim of this study was to test the hypothesis that infants of mothers at risk of pre-eclampsia who were randomised to receive high-dose vitamins C and E (1000 mg vitamin C and 400 IU RRR alpha-tocopherol daily) during pregnancy would have better respiratory outcomes than infants whose mothers were randomised to receive placebo. Methods Respiratory outcomes to 2 years of age were documented using questionnaires and, in a subset, by recording their healthcare utilisation and calculating the cost of care data. Results 330 women who had taken vitamin supplementation and 313 who had taken placebo completed the respiratory questionnaire (386 and 366 infants, respectively). There were no significant differences between the two groups in the proportions diagnosed with asthma. 54 women who had taken vitamin supplementation and 45 who had taken placebo took part in the healthcare utilisation study (65 and 53 infants, respectively). On average, infants of mothers receiving vitamin supplementation had 2.6 (99% CI 0.8 to 5.1) times more A&E/outpatient visits and 3.2 (99% CI 0.2 to 6.9) times more GP visits than infants of mothers receiving placebo, and their costs of care were 226 pound (99% CI 27 pound to 488) pound more for outpatient admissions, 57 pound (99% CI 3 pound to 123) pound more for GP visits and 22 pound (99% CI 3 pound to 50) pound more for medications. Conclusions High-dose antenatal vitamin C and E supplementation does not improve infant respiratory outcome and is associated with increased healthcare utilisation and cost of care.
引用
收藏
页码:998 / 1003
页数:6
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