Table 5 Multilevel logistic regression results for OPV1-OPV3 and PE1-PE3 (n = 460)

 Province 3

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

 Province 1

0.72 (0.20–2.54)

0.34 (0.10–1.10)

0.45 (0.17–1.15)

0.79 (0.27–2.30)

0.44 (0.14–1.31)

0.60 (0.28–1.27)

 Province 2

0.23 (0.07–0.82)*

0.14 (0.04–0.53)**

0.21 (0.07–0.66)**

0.26 (0.08–0.91)*

0.17 (0.05–0.60)**

0.26 (0.11–0.62)*

 Province 4

1.27 (0.36–4.55)

0.73 (0.20–2.62)

0.63 (0.26–1.54)

2.04 (0.66–6.31)

1.02 (0.31–3.31)

1.09 (0.56–2.13)

 Province 5

0.95 (0.30–3.00)

0.69 (0.21–2.26)

0.52 (0.22–1.22)

1.29 (0.45–3.66)

1.11 (0.36–3.41)

0.86 (0.48–1.53)

 Province 6

0.30 (0.09–0.97)*

0.25 (0.07–0.87)*

0.46 (0.15–1.43)

0.28 (0.09–0.89)*

0.27 (0.08–0.88)*

0.57 (0.22–1.49)

 Province 7

0.75 (0.23–2.43)

0.58 (0.17–2.02)

0.87 (0.34–2.20)

0.92 (0.30–2.75)

0.79 (0.25–2.50)

1.22 (0.61–2.44)

 Poorest

1.00

1.00

1.00

1.00

1.00

1.00

 Poorer

1.58 (0.69–3.64)

0.87 (0.40–1.89)

0.91 (0.46–1.83)

1.13 (0.58–2.18)

0.83 (0.41–1.66)

0.99 (0.54–1.81)

 Middle

0.91 (0.40–2.08)

0.97 (0.43–2.18)

0.76 (0.35–1.63)

0.63 (0.30–1.32)

0.91 (0.43–1.92)

0.74 (0.35–1.58)

 Richer

2.19 (0.78–6.09)

1.11 (0.44–2.81)

0.85 (0.37–1.92)

1.25 (0.47–3.29)

0.97 (0.43–2.22)

0.81 (0.36–1.80)

 Richest

1.17 (0.38–3.63)

1.10 (0.39–3.11)

1.39 (0.62–3.16)

0.74 (0.25–2.14)

0.80 (0.29–2.17)

1.07 (0.49–2.32)

 Summer

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

1.00 (ref)

 Spring

0.61 (0.29–1.30)

0.55 (0.26–1.17)

1.24 (0.63–2.47)

0.83 (0.34–2.00)

0.60 (0.30–1.17)

1.15 (0.55–2.41)

 Autumn

0.81 (0.35–1.89)

0.86 (0.38–1.95)

1.63 (0.80–3.34)

0.96 (0.46–2.00)

0.89 (0.44–1.81)

1.54 (0.81–2.92)

 Winter

0.72 (0.30–1.70)

0.91 (0.43–1.92)

1.82 (0.98–3.39)

0.83 (0.42–1.66)

0.91 (0.47–1.75)

1.63 (0.93–2.85)