Sydsjö Adam, Brynhildsen Jan, Selling Katarina Ekholm, Josefsson Ann, Sydsjö Gunilla
Division of Obstetrics and Gynaecology, Department of Molecular and Clinical Medicine, Faculty of Health Sciences, Linköping, Sweden.
Obstet Gynecol. 2006 May;107(5):991-6. doi: 10.1097/01.AOG.0000209194.63221.4d.
Birth weight in Sweden has increased during the past decades. We investigated whether rest provided by the combination of time off from work and social benefits among working pregnant women contributed to the observed changes.
A total of 7,459 consecutively delivered women in 1978, 1986, 1992, and 1997 at 2 delivery wards in southeastern Sweden were studied.
Between 1978 and 1997, the average birth weight among the children of the women studied increased from 3,484 to 3,566 grams (P < .001). The in-crease in weight was most evident among infants born to women who were employed during pregnancy. The use of social benefits and increased rest during pregnancy did not significantly influence birth weight (P = .107), even after adjustment for gestational length, parity, smoking, age, and occupation.
The continuous increase in infants' birth weight among pregnant women in this study did not correlate with rest periods in the form of leave supported by social benefit programs. The effects of social benefit programs on pregnancy outcome may thus be overrated and merits further research.
在过去几十年中，瑞典的出生体重有所增加。我们调查了在职孕妇通过休假和社会福利相结合所获得的休息是否促成了所观察到的变化。
对1978年、1986年、1992年和1997年在瑞典东南部2个分娩病房连续分娩的7459名妇女进行了研究。
在1978年至1997年期间，所研究妇女的孩子的平均出生体重从3484克增加到3566克（P <.001）。体重增加在孕期就业妇女所生婴儿中最为明显。即使在对孕周、产次、吸烟、年龄和职业进行调整后，孕期使用社会福利和增加休息对出生体重也没有显著影响（P = 0.107）。
本研究中孕妇婴儿出生体重的持续增加与社会福利项目支持的休假形式的休息时间无关。社会福利项目对妊娠结局的影响可能因此被高估，值得进一步研究。
