High maternal Hb was significantly associated with odds of VLBW (OR (95% CI) 1.35 (1.16–1.57)), PTB (OR (95% CI) 1.12 (1.00-1.25)), SGA (OR (95% CI) 1.17 (1.09–1.25)) and stillbirth (OR (95% CI) 1.32 (1.09–1.60)). The gene discussed is GSTM1; the disease is Stillbirth.