Table 4.

Multivariate analysis of risk factors for number of episodes of parasitemia

	One episode only PR (95% CI)*		Two episodes RR (95% CI)*		Three or more episodes RR (95% CI)*
Variable	Primigravida (N = 123)	Multigravida (N = 276)	Primigravida (N = 67)	Multigravida (N = 62)	Primigravida (N = 50)	Multigravida (N = 27)
HIV infection	0.76 (0.38–1.54)	1.31 (1.02–1.67)	1.40 (0.68–2.89)	2.20 (1.53–3.15)	1.49 (0.64–3.51)	4.82 (2.12–10.96)
Less than 8 years of education	1.08 (0.78–1.51)	1.06 (0.77–1.46)	1.77 (0.99–3.15)	0.86 (0.52–1.43)	1.98 (0.90–4.37)	N/A
Report always using bed net	0.64 (0.42–0.99)	0.96 (0.77–1.19)	0.62 (0.32–1.17)	0.96 (0.18–5.00)	1.01 (0.55–1.85)	0.95 (0.41–2.20)
SP doses received
0–1	1.44 (0.96–2.17)	1.19 (0.93–1.53)	1.03 (0.57–1.84)	0.73 (0.45–1.18)	0.54 (0.19–1.55)	N/A
2	0.75 (0.55–1.01)	0.97 (0.78–1.20)	0.63 (0.42–0.96)	0.68 (0.47–1.00)	0.50 (0.29–0.86)	0.48 (0.21–1.10)
3+	Reference	Reference	Reference	Reference	Reference	Reference

PR = prevalence ratio; RR = risk ratio; CI = confidence interval; Primigravidae (N = 339), Multigravidae (N = 1122).

^*Excluding enrollment visit.