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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