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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Environ Res. 2017 Sep 18;159:622–628. doi: 10.1016/j.envres.2017.09.010

Table 2.

Distribution of temperature during the week preceding delivery by season.

Season of Delivery Days Before Delivery Temperature (°C)
Min Max Mean SD
Cold (October to April) 0 (delivery day) −14.5 29.4 9.5 9.9
1 −15.8 29.4 9.3 9.9
2 −17.3 28.6 9.3 10.2
3 −19.6 29.0 9.3 10.5
4 −16.5 29.4 9.5 10.3
5 −16.0 29.4 9.5 10.0
6 −16.8 28.6 9.2 10.1
7 −16.5 29.0 9.1 10.4
Avg 0–7 −11.5 28.2 9.3 9.6

Warm (May to September) 0 (delivery day) 6.9 31.3 22.0 5.5
1 6.4 31.3 22.1 5.5
2 6.4 31.7 22.1 5.6
3 5.8 32.2 21.9 5.7
4 4.4 31.4 21.9 5.7
5 5.4 30.4 21.7 5.8
6 5.4 30.5 21.5 5.7
7 5.2 30.4 21.5 5.9
Avg 0-7 7.6 30.3 21.8 5.3