Soluble Sdc1 correlated with infant birth weight percentile in women with gestational hypertension (r = 0.69, P<0.05) and their controls (r = 0.79, p<0.03), but the correlation was marginal in preeclamptic women (r = 0.45, P = 0.07) and not significant in their controls (r = 0.05, P = 0.84). The gene discussed is SDC1; the disease is preeclampsia.