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Table 5 The single and cumulative effects estimated for different maximum temperatures at different lag days with the reference of 21.6 °C (median)

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

Single lag days

8.8 °C (the 10th percentile)

RR (95% confidence interval)

14.2 °C (the 25th percentile)

RR (95% confidence interval)

29.0 °C (the 75th percentile)

RR (95% confidence interval)

33.2 °C (the 90th percentile)

RR (95% confidence interval)

Multiple lag days

8.8 °C (the 10th percentile)

RR (95% confidence interval)

14.2 °C (the 25th percentile)

RR (95% confidence interval)

29.0 °C (the 75th percentile)

RR (95% confidence interval)

33.2 °C (the 90th percentile)

RR (95% confidence interval)

0

1.03

(0.91–1.16)

1.06

(0.96–1.16)

0.95

(0.86–1.05)

0.96

(0.84–1.11)

0

1.03

(0.91–1.16)

1.06

(0.96–1.16)

0.95

(0.86–1.05)

0.96

(0.84–1.11)

5

1.03

(0.99–1.08)

1.04

(1.01–1.07)*

0.96

(0.93–0.99)*

0.96

(0.92–1.00)*

0–5

1.20

(0.83–1.75)

1.32

(1.00–1.74)*

0.75

(0.56–1.00)

0.77

(0.52–1.16)

10

1.03

(0.98–1.08)

1.02

(0.98–1.06)

0.98

(0.94–1.02)

0.97

(0.92–1.02)

0–10

1.41

(0.93–2.15)

1.52

(1.12–2.05)*

0.65

(0.48–0.87)*

0.64

(0.43–0.95)*

15

1.02

(0.98–1.06)

1.01

(0.98–1.04)

1.00

(0.97–1.03)

1.00

(0.96–1.04)

0–15

1.62

(1.04–2.51)*

1.62

(1.18–2.23)*

0.62

(0.45–0.83)*

0.60

(0.41–0.88)*

20

1.00

(0.96–1.05)

0.99

(0.96–1.03)

1.02

(0.98–1.06)

1.02

(0.97–1.08)

0–20

1.72

(1.10–2.67)*

1.63

(1.19–2.22)*

0.64

(0.48–0.87)*

0.64

(0.44–0.94)*

25

0.97

(0.93–1.00)

0.98

(0.95–1.01)

1.03

(1.00–1.06)

1.04

(1.00–1.08)

0–25

1.58

(1.02–2.45)*

1.51

(1.11–2.04)*

0.72

(0.54–0.97)*

0.76

(0.51–1.13)

30

0.92

(0.82–1.03)

0.96

(0.88–1.04)

1.03

(0.94–1.12)

1.03

(0.91–1.17)

0–30

1.15

(0.83–1.60)

1.26

(1.01–1.57)*

0.83

(0.68–1.01)

0.91

(0.71–1.18)

  1. * p<0.05