Comment on "The influence of age at exposure to PBBs on birth outcomes".
Comment on "The influence of age at exposure to PBBs on birth outcomes".
复制标题
评论“接触多溴联苯的年龄对出生结果的影响”。
DOI：
10.1016/j.envres.2008.04.007
复制
发表时间：
2008
影响因子：
8.3
通讯作者：
Marcus,Michele
中科院分区：
文献类型：
--
作者：
Terrell,MetreciaL;Small,ChanleyM;Cameron,LorraineL;Marcus,Michele
We would like to comment on the article entitled “The influence of age at exposure to PBBs on birth outcomes”(Sweeney and Symanski, 2007, doi: 10.1016/j. envres. 2007.03. 006). We have analyzed a mostly overlapping dataset described in our recently published article,“Maternal exposure to polybrominated and polychlorinated biphenyls: Infant birth weight and gestational age”(Givens et al., 2007). In brief, our sample included 899 infant birth records from 1975–1997 from women in the Michigan Long–Term Polybrominated Biphenyl (PBB) Study who also participated in the 1997–1998 Michigan Female Health Study telephone interview. The study population in Sweeney and Symanski (2007) included a total of 1,111 infant birth records from 1975–1994 from the Michigan Long–Term PBB Study cohort and a smaller cohort, the PCB Silo Cohort. Birth weight and gestational age were analyzed as separate outcomes in mixed–effects models in both articles; however, we found results that differed from Sweeney and Symanski (2007).Our birth weight model (Givens et al., Table 2, 2007) included similar covariates to Sweeney and Symanski’s (2007) model presented in Table 4 (gestational age, maternal age at infant’s birth, PBB, PCB, parity, and infant gender) and a few additional covariates (maternal smoking status and decade of infant’s birth). In comparison to Sweeney and Symanski’s (2007) model, we did not include maternal age at enrollment, interval between blood test (taken at enrollment) and date of infant’s birth, maternal BMI at enrollment, prenatal care and paternal education.
