Pooled results showed significantly higher late pregnancy hPL levels in women with T1DM than controls (WMD = 1.24 μg/mL, 95% CI 0.44 to 2.05, p = 0.003), with no heterogeneity (I2 = 0%, p = 0.6). The gene discussed is LGALS1; the disease is type 1 diabetes mellitus.