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Table 3 The single and cumulative effects estimated for different mean temperatures at different lag days with the reference of 17.2 °C (median)

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

Single lag days

4.5 °C (the 10th percentile)

RR (95% confidence interval)

9.1 °C (the 25th percentile)

RR (95% confidence interval)

24.1 °C (the 75th percentile)

RR (95% confidence interval)

28.7 °C (the 90th percentile)

RR (95% confidence interval)

Multiple lag days

4.5 °C (the 10th percentile)

RR (95% confidence interval)

9.1 °C (the 25th percentile)

RR (95% confidence interval)

24.1 °C (the 75th percentile)

RR (95% confidence interval)

28.7 °C (the 90th percentile)

RR (95% confidence interval)

0

1.02

(0.88–1.18)

1.08

(0.96–1.20)

0.91

(0.82–1.01)

0.92

(0.78–1.07)

0

1.02

(0.88–1.18)

1.08

(0.96–1.20)

0.91

(0.82–1.01)

0.92

(0.78–1.07)

5

1.03

(0.98–1.08)

1.03

(0.99–1.07)

0.97

(0.93–1.00)*

0.96

(0.91–1.00)

0–5

1.15

(0.73–1.79)

1.35

(0.98–1.86)

0.69

(0.51–0.93)*

0.68

(0.44–1.05)

10

1.03

(0.98–1.10)

1.01

(0.97–1.06)

0.99

(0.95–1.04)

0.99

(0.93–1.05)

0–10

1.34

(0.82–2.18)

1.49

(1.07–2.09)*

0.64

(0.48–0.86)*

0.60

(0.39–0.90)*

15

1.03

(0.98–1.08)

1.01

(0.97–1.05)

1.01

(0.97–1.04)

1.01

(0.96–1.06)

0–15

1.58

(0.95–2.60)

1.57

(1.11–2.23)*

0.65

(0.48–0.87)*

0.59

(0.39–0.89)*

20

1.01

(0.95–1.07)

1.00

(0.96–1.05)

1.01

(0.97–1.05)

1.02

(0.96–1.09)

0–20

1.73

(1.06–2.83)*

1.62

(1.14–2.29)*

0.68

(0.50–0.91)*

0.64

(0.43–0.97)*

25

0.96

(0.92–1.01)

0.98

(0.95–1.01)

1.02

(0.99–1.05)

1.03

(0.99–1.08)

0–25

1.60

(0.99–2.58)

1.54

(1.09–2.18)*

0.72

(0.53–0.99)*

0.74

(0.48–1.15)

30

0.89

(0.78–1.02)

0.93

(0.83–1.04)

1.04

(0.94–1.15)

1.04

(0.89–1.20)

0–30

1.07

(0.76–1.50)

1.20

(0.97–1.48)

0.83

(0.69–1.00)*

0.88

(0.69–1.13)

  1. * p<0.05