The risk of overall maternal anemia (Hb<11 g/dl) at delivery was also lower (44.1% in the SP group versus 40.5% in the MQ group [RR, 0.92 (95% CI 0.85–0.99)]; p = 0.03) and the mean Hb was higher in women who received IPTp-MQ compared to those in the SP group, although these differences were only significant in the ITT analysis (Table 3). Here, GSTM1 is linked to anemia (phenotype).