Oakley A, Rajan L, Grant A
Thomas Coram Research Unit, University of London Institute of Education, UK.
Br J Obstet Gynaecol. 1990 Feb;97(2):155-62. doi: 10.1111/j.1471-0528.1990.tb01741.x.
A total of 509 women with a history of a low-birthweight (LBW, less than 2500 g) baby were recruited from the antenatal booking clinics of four hospitals and randomized to receive either a social support intervention in pregnancy in addition to standard antenatal care (the intervention group) or standard antenatal care only (the control group). At recruitment to the study, mean gestational age was 6 weeks, mean maternal age was 28.0 years, 86% of the women had one previous LBW baby, 11% had two and 2% had had three or more. The study population was socially disadvantaged: 77% of the women were working class, 18% had unemployed partners and 41% were smoking at booking. Social support was given by four research midwives in the form of 24-h contact telephone numbers and a programme of home visits, during which the midwives provided a listening service for the women to discuss any topic of concern to them, gave practical information and advice when asked, carried out referrals to other health professionals and welfare agencies as appropriate, and collected social and medical information. Pregnancy outcomes were assessed using obstetric case-note data (obtained for 507 women) and a postal questionnaire sent to all mothers 6 weeks after delivery (94% replied). Babies of intervention group mothers had a mean birthweight 38 g higher than that of control group babies; there were fewer very low-birthweight babies in the intervention group.(ABSTRACT TRUNCATED AT 250 WORDS)
从四家医院的产前预约诊所招募了总共509名有低体重（LBW，小于2500克）婴儿史的女性，并将她们随机分为两组，一组除接受标准产前护理外，还在孕期接受社会支持干预（干预组），另一组仅接受标准产前护理（对照组）。在研究招募时，平均孕周为6周，平均产妇年龄为28.0岁，86%的女性曾有过一个低体重婴儿，11%有过两个，2%有过三个或更多。研究人群在社会经济方面处于劣势：77%的女性为工人阶级，18%的伴侣失业，41%在预约时吸烟。四名研究助产士提供社会支持，方式是提供24小时联系电话和家访计划。在家访期间，助产士为女性提供倾听服务，以便她们讨论任何关心的话题，在被询问时提供实用信息和建议，酌情将她们转介给其他健康专业人员和福利机构，并收集社会和医疗信息。使用产科病历数据（507名女性的数据）和产后6周寄给所有母亲的邮政调查问卷（94%回复）评估妊娠结局。干预组母亲的婴儿平均出生体重比对照组婴儿高38克；干预组极低体重婴儿较少。（摘要截选至250字）
