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

<p>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.</p><p>² Sex- and gestational age-specific z scores were calculated by a Canadian National Growth Reference [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137269#pone.0137269.ref023" target="_blank">23</a>].</p><p>³ p<0.05</p><p>⁴ p<0.01</p><p>Association between fetal growth hormones and birth size in rural Bangladesh, 2009–2010<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137269#t004fn004" target="_blank">¹</a>.