Table 2.

District characteristics associated with adjusted risk of cholera in Kenya

	RR (95% CI) categorical model	RR (95% CI) continuous model
Population density		0.9999 (0.9996, 1.0002)
0–50	Ref
51–200	0.23 (0.05, 1.02)
201–500	0.12 (0.02, 0.73)
501–1000	0.17 (0.00, 9.88)
1000+	0.77 (0.05, 10.83)
Poverty,%		1.0059 (0.9864, 1.0257)
0–33%	Ref
34–66%	6.01 (0.53, 67.70)
67–100%	4.00 (0.38, 41.50)
Unsafe sanitary facilities,%		1.0027 (0.9875, 1.0181)
0–20%	Ref
21–40%	1.47 (0.2 7, 7.84)
41–60%	1.44 (0.33, 6.20)
61–100%	0.15 (0.01, 1.80)
No piped water,%		0.9929 (0.9740, 1.0122)
0–50%	Ref
51–75%	5.21 (1.63, 16.64)
76–100%	3.31 (0.97, 11.30)
No health facility within 5 km,%		1.0245 (1.0101, 1.0390)
0–25%	Ref
26–50%	0.87 (0.06, 11.98)
51–75%	1.64 (0.19, 13.72)
76–100%	10.80 (1.63, 71.57)
Muslim,%		1.0130 (1.0011, 1.0250)
0%	Ref
1–10%	0.47 (0.05, 4.28)
11–20%	1.67 (0.19, 14.27)
21–100%	1.38 (0.29, 6.45)
Large body of water		5.5 (2.4724, 12.4044)
No	Ref
Ocean	18.07 (1.17, 278.04)
Fresh	19.91 (2.34, 169.14)
Rain from January to March (mm)		1.0002 (0.9966, 1.0038)
0–100 mm	Ref
101–200 mm	1.85 (0.42, 8.16)
201–299 mm	1.85 (0.59, 5.81)
300+ mm	1.86 (0.52, 6.63)
Rain from April to June (mm)		0.9957 (0.9923, 0.9991)
0–100 mm	Ref
101–200 mm	0.09 (0.01, 0.51)
201–299 mm	0.15 (0.03, 0.59)
300+ mm	0.03 (0.00, 0.18)
Rain from July to September (mm)		1.0020 (0.9991, 1.0049)
0–100 mm	Ref
101–200 mm	1.10 (0.33, 3.59)
201–299 mm	1.47 (0.24, 9.05)
300+ mm	5.24 (0.60, 45.55)
Rain from October to December (mm)		1.0033 (1.0013, 1.0053)
0–100 mm	Ref
101–200 mm	6.56 (0.54, 79.79)
201–299 mm	17.98 (1.54, 209.70)
300+ mm	24.52 (2.21, 271.90)

Bolded values represents significant statistical difference (p<0.05).