Table 3.

Results of a multivariable model measuring associations of patient characteristics with haemoglobin (Hgb) level at the baseline visit and weekly changes during iron supplementation (see also Figure 1). Effects are relative to HIV− women with mean Hgb at baseline of 7.8 g/dL and mean weekly change in Hgb of 0.43 g/dL.

Patient characteristic	Mean (95% CI) baseline difference in Hgb per unit change in each covariate	Type-3 p-value
HIV+ vs HIV−	−0.25 (−0.53, 0.037)	0.088
Ferritin, per 5 ng/mL increment	0.098 (0.078, 0.12)	<0.001
Gestational age, per month	0.052 (−0.003, 0.11)	0.063
Maternal age, per year	0.003 (−0.012, 0.018)	0.70
	Mean (95% CI) weekly change in Hgb per unit change in each covariate	Type-3 p-value
HIV+ vs HIV−	−0.098 (−0.16, −0.041)	0.001
Ferritin, per 5 ng/mL increment	−0.013 (−0.017, −0.009)	<0.001
Compliant with oral iron *	0.057 (0.021, 0.093)	0.002
IV iron documented *	−0.031 (−0.092, 0.031)	0.33

^*Modeled as a time-varying covariate