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. Author manuscript; available in PMC: 2018 Mar 13.

Published in final edited form as: Environ Int. 2017 Mar 27;103:23–29. doi: 10.1016/j.envint.2017.03.017

Table 2.

Summary statistics and Spearman correlation of environmental variables.

	Summary statistics		Spearman correlation
	Mean ± SD	Median (p25, p75)	24-h T_MEAN	24-h T_SD
Overall (n = 1141)
24-h T_MEAN (°C)	13.0 ± 8.6	13.3 (6.7, 20.0)	1.00	0.33^**
24-h T_SD (°C)	2.4 ± 1.2	2.2 (1.5, 3.1)	–	1.00
Spring (n = 281)
24-h T_MEAN (°C)	9.8 ± 6.1	10.2 (5.8, 13.1)	1.00	0.36^**
24-h T_SD (°C)	2.4 ± 1.3	2.1 (1.5, 2.9)	–	1.00
Summer (n = 318)
24-h T_MEAN (°C)	21.8 ± 4.5	22.1 (19.0, 24.8)	1.00	0.44^**
24-h T_SD (°C)	2.6 ± 1.2	2.6 (1.7, 3.3)	–	1.00
Fall (n = 365)
24-h T_MEAN (°C)	13.5 ± 5.6	13.7 (9.2, 17.7)	1.00	0.27^**
24-h T_SD (°C)	2.3 ± 1.0	2.1 (1.4, 3.0)	–	1.00
Winter (n = 177)
24-h T_MEAN (°C)	1.2 ± 5.0	1.6 (−2.1, 4.0)	1.00	0.02^*
24-h T_SD (°C)	2.2 ± 1.3	1.9 (1.4, 2.6)	–	1.00

^*

p < 0.05.

^**

p < 0.01.