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Table 4 Factors associated with use of an insecticide treated bed net the previous night by women aged 15–49 years in eight districts, Malawi, 2009 (N = 6985)

From: The use of intermittent preventive treatment in pregnancy and insecticide-treated bed nets for malaria prevention by women of child-bearing age in eight districts in Malawi

Variable Unadjusted odds ratio (95 % CI) p value Adjusted odds ratio (95 % CI) p value
District
 Blantyre Referent Referent Referent Referent
 Chiradzulu 0.87 (0.66–1.1) 0.32 0.86 (0.61–1.2) 0.37
 Karonga 0.88 (0.68–1.2) 0.36 0.90 (0.68–1.2) 0.48
 Lilongwe 0.79 (0.55–1.1) 0.20 0.77 (0.51–1.2) 0.22
 Mwanza 1.1 (0.88–1.5) 0.33 1.1 (0.8–1.5) 0.44
 Nkhotakhota 0.54 (0.43–0.68) <0.001 0.52 (0.39–0.69) <0.001
 Phalombe 0.86 (0.65–1.2) 0.32 0.67 (0.47–0.95) 0.02
 Rumphi 0.79 (0.59–1.1) 0.14 0.76 (0.55–1.1) 0.10
Age category
 15–19 years old 0.68 (0.51–0.90) 0.008 0.61 (0.45–0.83) 0.002
 20–24 years old 1.2 (0.96–1.5) 0.12 0.87 (0.69–1.1) 0.21
 25–29 years old 1.3 (1.0–1.5) 0.02 0.98 (0.79–1.2) 0.83
 30–34 years old 1.2 (0.91–1.5) 0.22 0.94 (0.73–1.2) 0.65
 35–49 years old Referent Referent Referent Referent
Education
 None Referent Referent Referent Referent
 Some primary school 1.1 (0.85–1.5) 0.41 1.1 (0.85–1.5) 0.40
 Completed primary school 1.1 (0.79–1.6) 0.57 1.1 (0.75–1.5) 0.69
 Some secondary school 0.97 (0.66–1.4) 0.86 1.1 (0.75–1.7) 0.58
 Completed secondary school or above 0.86 (0.52–1.4) 0.55 0.87 (0.52–1.5) 0.60
Socioeconomic status by asset index
 Poorest 1.1 (0.77–1.7) 0.52 1.0 (0.70–1.5) 0.93
 Less poor 1.1 (0.76–1.6) 0.62 0.96 (0.69–1.3) 0.81
 Middle 1.4 (0.93–2.0) 0.10 1.2 (0.87–1.7) 0.24
 More rich 1.4 (1.0–2.0) 0.04 1.3 (1.0–1.8) 0.05
 Least poor Referent Referent Referent Referent
Pregnancy category
 Currently pregnant 1.5 (1.2–1.9) <0.001 1.5 (1.2–2.0) <0.001
 Completed pregnancy in past 2 yearsa 2.4 (2.1–2.8) <0.001 2.4 (2.1–2.8) <0.001
 Not pregnant in past 2 years Referent Referent Referent Referent
  1. 95 % CI 95 % confidence interval
  2. aNot currently pregnant