Table 3.

Cumulative relative risks for cold (1^st vs. MMT) and for heat (99th vs. MMT), relative risks of rural counties vs. urban counties, p-value for urban–rural difference along lag 0–21 days for cause-specific mortality for urban and rural counties in Zhejiang Province, 2009–2015, with 95% confidence intervals.

Cause-specific mortality and subgroups	1st vs. MMT (cold)				99th vs. MMT (heat)
	Relative risks		Relative risks of rural vs. urban	p-Value for urban–rural difference	Relative risks		Relative risks of rural vs. urban	p-Value for urban–rural difference
	Urban	Rural			Urban	Rural
All cause	1.47 (1.32, 1.62)	1.98 (1.87, 2.10)	1.30 (1.22, 1.39)	0.0004	1.15 (1.07, 1.24)	1.18 (1.14, 1.23)	1.01 (0.82, 1.24)	0.2
Nonaccidental	1.50 (1.35, 1.66)	2.04 (1.92, 2.16)	1.31 (1.23, 1.39)	0.003	1.12 (1.04, 1.20)	1.16 (1.12, 1.21)	1.03 (0.87, 1.20)	0.06
Age 0–64	1.24 (1.05, 1.46)	1.56 (1.39, 1.76)	1.20 (0.81, 1.79)	0.3	1.04 (0.91, 1.20)	1.02 (0.96, 1.08)	0.98 (0.63, 1.52)	0.6
Age $65+$	1.59 (1.36, 1.87)	2.18 (2.05, 2.32)	1.34 (1.14, 1.57)	0.005	1.11 (0.98, 1.26)	1.20 (1.15, 1.25)	1.05 (0.73, 1.51)	0.5
Males	1.53 (1.27, 1.84)	2.00 (1.86, 2.14)	1.26 (1.06, 1.49)	0.04	1.09 (0.97, 1.22)	1.11 (1.06, 1.16)	1.01 (0.64, 1.60)	0.6
Females	1.48 (1.28, 1.71)	2.09 (1.91, 2.28)	1.37 (1.14, 1.64)	0.003	1.12 (0.96, 1.31)	1.24 (1.17, 1.30)	1.09 (0.90, 1.33)	0.1
Cardiopulmonary	1.64 (1.45, 1.85)	2.35 (2.17, 2.54)	1.39 (1.27, 1.52)	0.009	1.16 (1.04, 1.29)	1.26 (1.19, 1.33)	1.06 (0.76, 1.47)	0.6
Respiratory	1.67 (1.47, 1.91)	2.31 (2.05, 2.61)	1.36 (1.21, 1.53)	0.01	1.24 (1.02, 1.50)	1.32 (1.20, 1.45)	1.04 (0.73, 1.48)	0.5
Cardiovascular	1.65 (1.41, 1.92)	2.36 (2.13, 2.61)	1.38 (1.23, 1.55)	0.001	1.16 (1.03, 1.29)	1.22 (1.15, 1.30)	1.03 (0.71, 1.50)	0.7

Note:1st and 99th refer to the percentiles of daily mean temperatures in 29 urban counties (combined) and 60 rural counties (combined). MMT refers to the minimum mortality temperature for 29 urban counties (combined) and 60 rural counties (combined).