Table 1.

Relative risk (RR) of invasive nontyphoid Salmonella (iNTS) and typhoid disease, and 95% Confidence Intervals (CIs) at rainfall in millimetres (mm), temperature in degrees Celsius (°C) and monthly lag-specific values relative to baseline rainfall (0 mm) and temperature (23 °C), with statistical significance (*) at p < 0.05.

	RR of iNTS, (95%CI)	RR of typhoid, (95%CI)	RR of iNTS, (95%CI)	RR of typhoid, (95%CI)
Month	Rainfall (9 mm)	Rainfall (9 mm)	Rainfall (13 mm)	Rainfall (13 mm)
Lag 0	1.20 (1.01–1.44)*	0.74 (0.46–1.19)	1.18 (0.92–1.52)	0.16 (0.06–0.52)*
Lag 1	1.28 (1.14–1.43)*	1.13 (0.80–1.59)	1.06 (0.89–1.27)	0.20 (0.10–0.43)*
Lag 2	1.32 (1.20–1.46)*	1.56 (1.21–2.02)*	0.97 (0.81–1.16)	0.26 (0.13–0.52)*
Lag 3	1.31 (1.17–1.45)*	1.86 (1.51–2.30)*	0.90 (0.73–1.10)	0.34 (0.16–0.69)*
Lag 4	1.24 (1.11–1.37)*	1.94 (1.60–2.35)*	0.85 (0.69–1.04)	0.43 (0.21–0.87)*
Lag 5	1.14 (1.03–1.26)*	1.82 (1.51–2.20)*	0.81 (0.67–0.97)*	0.55 (0.29–1.04)
Lag 6	1.02 (0.92–1.15)	1.58 (1.29–1.94)*	0.78 (0.65–0.93)*	0.69 (0.38–1.25)
Lag 7	0.91 (0.79–1.04)	1.30 (1.02–1.66)*	0.75 (0.61–0.94)*	0.87 (0.47–1.63)
Lag 8	0.79 (0.66–0.96)*	1.04 (0.76–1.42)	0.73 (0.55–0.98)*	1.1 (0.51–2.38)
Month	Temperature (19 °C)	Temperature (19 °C)	Temperature (29 °C)	Temperature (25 °C)
Lag 0	0.87 (0.76–1.01)	1.31 (0.95–1.81)	0.93 (0.73–1.20)	0.74 (0.53–1.03)
Lag 1	0.98 (0.88–1.09)	1.41 (1.09–1.84)*	0.88 (0.76–1.03)	0.93 (0.73–1.19)
Lag 2	1.07 (0.97–1.18)	1.47 (1.08–2.01)*	0.83 (0.73–0.96)*	1.12 (0.87–1.43)
Lag 3	1.11 (1.00–1.23)*	1.44 (1.02–2.05)*	0.80 (0.69–0.93)*	1.26 (0.96–1.65)
Lag 4	1.12 (1.02–1.23)*	1.35 (0.96–1.91)	0.77 (0.66–0.89)*	1.34 ((1.03–1.75*
Lag 5	1.09 (1.00–1.19)*	1.22 (0.89–1.67)	0.74 (0.65–0.84)*	1.36 (1.08–1.73)*
Lag 6	1.04 (0.95–1.13)	1.06 (0.77–1.46)	0.71 (0.62–0.82)*	1.34 (1.10–1.64)*
Lag 7	0.98 (0.88–1.08)	0.91 (0.61–1.35)	0.69 (0.56–0.84)*	1.29 (1.07–1.57)*
Lag 8	0.91 (0.80–1.04)	0.77 (0.45–1.31)	0.66 (0.50–0.88)*	1.23 (0.97–1.57)