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Table 3 Univariate and multivariate adjusted hazard ratio for the first episode of microscopic malarial parasitaemia

From: Effect of a short course of iron polymaltose on acquisition of malarial parasitaemia in anaemic Indonesian schoolchildren: a randomized trial

Variable Univariate Multivariate
  HR (95% CI) P value HR (95% CI) P value
Iron treatment 2.2 (1.2–4.2) 0.013 2.3 (1.2–4.3) 0.012
Microcytosis 3.3 (1.6–7.1) 0.001 3.4 (1.7–7.1) 0.001
Iron deficiency 0.6 (0.3–1.3) 0.18 0.6 (0.3–1.4) 0.22
Age 0.9 (0.8–1.0) 0.22 1.0 (0.9–1.1) 0.63
Female sex 1.3 (0.7–2.5) 0.43 1.7 (0.9–3.2) 0.13
  1. Microcytosis defined as MCV value < 75 fl; iron deficiency as ferritin concentration < 30 µg/l. Age was included as continuous variable
  2. HR hazard ratio, CI confidence interval