Association between fetal growth hormones and birth size in rural Bangladesh, 2009–20101.

1 hPL, human placental lactogen; PGH, placental growth hormone; IGF-1, insulin like growth factor; IGFBP-1, IGF-1 binding protein; MUAC, mid-upper arm circumference. Linear regression models adjusted for maternal BMI, height, parity, age, education, and supplementation group (multiple micronutrient or iron and folic acid). Insulin, IGF-1, and IGFBP-1 were standardized to have mean = 0 and SD = 1. Exposures were standardized to have mean = 0 and SD = 1. β's represent mean increase in placental weight or other birth size outcome for each standard deviation increase in exposure.2 Sex- and gestational age-specific z scores were calculated by a Canadian National Growth Reference [23].3 p4 pAssociation between fetal growth hormones and birth size in rural Bangladesh, 2009–20101.