CD4 and anemia (phenotype): In this model, women with advanced maternal age (≥35 years) have an adjusted odds ratio of having an adverse pregnancy outcome that is 0.6 (95% CI, .1 to 2.4; P = .50) times that of women aged <35 years, after controlling for IPT use, CD4 count, PMTCT regimen, viral load, BMI, and anemia.