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Table 2 Difference between the two subgroups according to temperature threshold (the daily mean temperature threshold was 17.2 °C, the daily minimum temperature threshold was 14.4 °C, and the daily maximum temperature threshold was 21.6 °C)

From: Short-term effects of ambient temperature on the risk of preeclampsia in Nanjing, China: a time-series analysis

Mean temperature (days) Preeclampsia admissions per day (95% confidence interval) Minimum temperature (days) Preeclampsia admissions per day(95% confidence interval) Maximum temperature (days) Preeclampsia admissions per day(95% confidence interval)
>  = 17.2 (365) 1.48 (1.34–1.63) >  = 14.4 (364) 1.50 (1.36–1.64) >  = 21.6(365) 1.50 (1.36–1.64)
< 17.2(366) 1.82 (1.66–1.99) < 14.4(367) 1.82 (1.65–1.98) < 21.6(366) 1.82 (1.66–1.99)
t -3.11 t -2.87 t -2.96
p 0.002 p 0.004 p 0.003