Short-term effects of meteorological factors on pediatric hand, foot, and mouth disease in Guangdong, China: a multi-city time-series analysis

Table 1 The pooled effects of meteorological factors on HFMD occurrences in eight cities

	Relative Risk (95 % confidence interval)
	Lag 0	Lag 7	Lag 14	Lag 0–7	Lag 0–14
Temperature (°C, reference at 23.5 °C)^a
9.8 (P5)	1.06 (1.04, 1.09)^b	0.96 (0.93, 0.98)^b	1.03 (0.98, 1.08)	1.02 (0.82, 1.28)	0.83 (0.59, 1.18)
17.4 (P25)	1.03 (1.01, 1.05)^b	0.98 (0.97, 0.99)^b	1.01 (0.98, 1.04)	0.98 (0.90, 1.07)	0.98 (0.85, 1.13)
27.3 (P75)	0.98 (0.96, 0.99)^b	1.04 (1.03, 1.05)^b	1.02 (0.99, 1.04)	1.16 (1.08, 1.26)^b	1.37 (1.18, 1.59)^b
29.7 (P95)	0.95 (0.93, 0.96)^b	1.06 (1.05, 1.07)^b	1.04 (1.02, 1.05)^b	1.19 (1.07, 1.31)^b	1.51 (1.29, 1.77)^b
Relative humidity (%, reference at 78 %)^a
57.0 (P5)	1.03 (1.00, 1.07)	0.97 (0.94, 1.00)	0.99 (0.97, 1.01)	0.96 (0.69, 1.35)	0.85 (0.39, 1.83)
70.3 (P25)	1.02 (1.01, 1.02)^b	0.99 (0.98, 0.99)^b	0.99 (0.98, 1.01)	0.96 (0.90, 1.03)	0.90 (0.82, 0.99)^b
85.0 (P75)	0.98 (0.97, 0.99)^b	1.02 (1.01, 1.03)^b	1.02 (1.01, 1.03)^b	1.03 (1.00, 1.06)^b	1.12 (1.02, 1.24)^b
94.0 (P95)	0.95 (0.93, 0.97)^b	1.01 (1.00, 1.03)	1.01 (0.99, 1.03)	1.02 (0.95, 1.09)	1.01 (0.85, 1.19)

ISSN: 1471-2334