A multivariable regression model, adjusting for all the predictor variables, indicated that newborn WAZ was positively associated with maternal height, BMI, and haemoglobin (Hb) at enrolment and negatively associated with maternal primiparity, HIV infection, malaria, periapical infections, and urinary tract infection (Table 3, Model 1). The gene discussed is GSTM1; the disease is HIV infectious disease.