Robitaille Y, Kramer M S
Am J Public Health. 1985 Oct;75(10):1186-9. doi: 10.2105/ajph.75.10.1186.
In a prospective epidemiologic survey of 1,676 primiparous women delivering in four Montreal hospitals during an eight-month period, we studied the impact of prenatal courses on birthweight, maternal weight gain, and cigarette smoking. Women who participated in prenatal courses were older and of higher socioeconomic status and were less likely to be smokers than non-participants. After adjustment for these differences, newborns of course participants had similar mean birthweights compared to those of non-participants (3286 grams vs 3271 grams), and the difference for maternal weight gain was substantially reduced. Most of the reduction in cigarette consumption occurred during the first three months of pregnancy, even among later participants, suggesting that something other than prenatal courses influenced cigarette smoking reduction in course participants. We conclude that as far as the birthweight objective is concerned, the format and content of prenatal courses (as currently constituted in the Montreal region) require re-examination, and new ideas and interventions need to be developed and tested.
在一项对蒙特利尔四家医院八个月内分娩的1676名初产妇进行的前瞻性流行病学调查中，我们研究了产前课程对出生体重、孕妇体重增加和吸烟的影响。参加产前课程的女性年龄较大，社会经济地位较高，与未参加者相比，吸烟的可能性较小。在对这些差异进行调整后，参加课程的新生儿的平均出生体重与未参加者相似（3286克对3271克），孕妇体重增加的差异也大幅减小。吸烟量的减少大多发生在怀孕的前三个月，即使是后来参加课程的人也是如此，这表明除了产前课程之外，还有其他因素影响了参加课程者吸烟量的减少。我们得出结论，就出生体重目标而言，产前课程的形式和内容（如蒙特利尔地区目前的构成）需要重新审视，需要开发和测试新的理念和干预措施。
