Han Jing-xiu, Gan De-kun, Zhai Gui-rong, Shi Ying
Institute for Environment Hygiene and Health Related Product Safety, Chinese Center for Disease Control and Prevention, Beijing 100021, China.
Wei Sheng Yan Jiu. 2006 Nov;35(6):788-90.
To analyze the effect of passive smoking during different pregnancy term to infant birth weight.
155 women which infants were singleton term small-for-gestational-age infant (SGA) -cases and 155 with singleton term non-SGA controls matched by infant sex, infant birthday ( +/-10 days) and maternal age ( < 20 years, 20- 35 years and > or = 35 years) were interviewed. Single and multiple analyses were performed by conditional logistic regression.
Passive smoking during the second, the third or the whole term of pregnancy was significantly associated with risk of term SGA (P < 0.05). The odds ratios of these risk factors were 3.07, 2.94 and 3.42 respectively. Passive smoking during the first term of the pregnancy was not associated with risk of term SGA ( P > 0.05) .
Decreasing passive smoking during the second or the third term of pregnancy maybe benefits to lower the risk of term SGA.
分析孕期不同阶段被动吸烟对婴儿出生体重的影响。
对155名婴儿为足月单胎小于胎龄儿（SGA）的妇女和155名与之匹配的足月单胎非SGA对照妇女进行访谈，匹配因素包括婴儿性别、出生日期（±10天）和母亲年龄（<20岁、20 - 35岁、≥35岁）。采用条件逻辑回归进行单因素和多因素分析。
孕期第二阶段、第三阶段或整个孕期被动吸烟与足月SGA风险显著相关（P < 0.05）。这些危险因素的比值比分别为3.07、2.94和3.42。孕期第一阶段被动吸烟与足月SGA风险无关（P > 0.05）。
减少孕期第二阶段或第三阶段的被动吸烟可能有助于降低足月SGA的风险。
