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Table 2 Relative risks of allergic rhinitis associated with daily mean temperature among selected cutoff points

From: Changes in ambient temperature increase hospital outpatient visits for allergic rhinitis in Xinxiang, China

Lag effects (days)

1st percentile relative to median temperature RR (95% CI)

25th percentile relative to median temperature RR (95% CI)

75th percentile relative to median temperature RR (95% CI)

99th percentile relative to median temperature RR (95% CI)

Lag 0

0.98 (0.75–1.27)

1.03 (0.89–1.18)

1.00 (0.91–1.11)

0.85 (0.71–1.02)

Lag 0–1

0.95 (0.72–1.26)

1.02 (0.87–1.18)

1.09 (0.98–1.21)

0.96 (0.79–1.18)

Lag 0–2

0.98 (0.73–1.33)

1.03 (0.87–1.21)

1.14 (1.01–1.27)*

1.05 (0.85–1.31)

Lag 0–3

1.04 (0.75–1.44)

1.09 (0.91–1.30)

1.15 (1.02–1.29)*

1.09 (0.86–1.37)

Lag 0–4

1.07 (0.76–1.51)

1.16 (0.96–1.41)

1.13 (0.99–1.29)

1.10 (0.86–1.40)

Lag 0–5

1.08 (0.75–1.55)

1.23 (1.00–1.51)

1.10 (0.96–1.27)

1.08 (0.83–1.40)

Lag 0–6

1.08 (0.73–1.59)

1.27 (1.02–1.58)*

1.07 (0.92–1.23)

1.05 (0.80–1.38)

Lag 0–7

1.11 (0.73–1.68)

1.32 (1.05–1.67)*

1.05 (0.90–1.22)

1.02 (0.77–1.37)

Lag 0–14

0.80 (0.44–1.45)

1.26 (0.90–1.77)

0.91 (0.73–1.12)

0.59 (0.39–0.88)*

Lag 0–21

1.02 (0.47–2.20)

1.50 (0.98–2.30)

0.79 (0.59–1.04)

0.28 (0.16–0.47)*

Lag 0–28

1.46 (0.54–3.96)

1.61 (0.91–2.82)

0.79 (0.54–1/16)

0.24 (0.12–0.50)*

  1. *p<0.05. RR relative risk