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Table 4 The single and cumulative effects estimated for different minimum temperatures at different lag days with a reference of 14.4 °C (median)

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

Single lag days 0.9 °C (the 10th percentile)
RR(95% confidence interval)
5.6 °C (the 25th percentile)
RR (95% confidence interval)
20.9 °C (the 75th percentile)
RR (95% confidence interval)
25.7 °C (the 90th percentile)
RR (95% confidence interval)
Multiple lag days 0.9 °C (the 10th percentile)
RR (95% confidence interval)
5.6 °C (the 25th percentile)
RR (95% confidence interval)
20.9 °C (the 75th percentile)
RR (95% confidence interval)
25.7 °C (the 90th percentile)
RR (95% confidence interval)
0 1.34
(0.90–1.99)
1.31
(0.95–1.81)
0.76
(0.59–0.98)*
0.65
(0.39–1.08)
0 1.34
(0.90–1.99)
1.31
(0.95–1.81)
0.76
(0.59–0.98)*
0.65
(0.39–1.08)
1 0.87
(0.71–1.08)
0.90
(0.76–1.07)
1.11
(0.97–1.28)
1.22
(0.92–1.62)
0–1 1.17
(0.79–1.73)
1.19
(0.86–1.63)
0.85
(0.66–1.09)
0.79
(0.48–1.30)
2 0.87
(0.68–1.10)
0.89
(0.73–1.08)
1.16
(0.99–1.36)
1.32
(0.96–1.83)
0–2 1.01
(0.68–1.51)
1.05
(0.76–1.45)
0.99
(0.76–1.27)
1.05
(0.63–1.74)
3 1.05
(0.89–1.24)
1.04
(0.90–1.19)
1.02
(0.91–1.14)
1.07
(0.85–1.36)
0–3 1.07
(0.71–1.60)
1.09
(0.78–1.51)
1.00
(0.77–1.30)
1.13
(0.68–1.86)
4 1.27
(1.01–1.59)*
1.21
(1.00–1.46)*
0.87
(0.75–1.02)
0.84
(0.61–1.15)
0–4 1.35
(0.90–2.03)
1.32
(0.95–1.82)
0.88
(0.68–1.13)
0.94
(0.58–1.54)
5 1.22
(0.99–1.49)
1.18
(1.00–1.40)*
0.87
(0.76–0.99)*
0.80
(0.61–1.06)
0–5 1.65
(1.07–2.54)*
1.55
(1.10–2.19)*
0.76
(0.58–0.99)*
0.76
(0.46–1.26)
6 0.75
(0.53–1.06)
0.81
(0.61–1.08)
1.15
(0.91–1.46)
1.22
(0.76–1.98)
0–6 1.24
(0.93–1.65)
1.26
(1.01–1.56)*
0.88
(0.76–1.01)
0.92
(0.73–1.17)
  1. * p<0.05