Table 4.

The associations between low DTR (1.9℃), high DTR (14.2℃), and RA hospital admissions in Anqing from 2015 to 2019

Single-day	Relative risk (95% CI)		Multi-day	Relative risk (95% CI)
	Low (1.9℃)	High (14.2℃)		Low (1.9℃)	High (14.2℃)
0	1.40 (1.03–1.91)*	1.24 (1.01–1.53)*	0–0	1.40 (1.03–1.91)*	1.24 (1.01–1.53)*
1	1.36 (1.07–1.72)*	1.22 (1.04–1.43)*	0–1	1.90 (1.11–3.27)*	1.52 (1.05–2.18)*
2	1.31 (1.09–1.57)*	1.20 (1.05–1.36)*	0–2	2.50 (1.23–5.08)*	1.81 (1.12–2.94)*
3	1.27 (1.09–1.48)*	1.17 (1.05–1.31)*	0–3	3.17 (1.38–7.30)*	2.13 (1.20–3.77)*
4	1.23 (1.06–1.43)*	1.15 (1.03–1.29)*	0–4	3.91 (1.55–9.83)*	2.45 (1.29–4.66)*
5	1.20 (1.02–1.41)*	1.13 (1.01–1.28)*	0–5	4.67 (1.72–12.68)*	2.78 (1.37–5.64)*
6	1.16 (0.98–1.38)	1.12 (0.99–1.26)	0–6	5.44 (1.86–15.90)*	3.10 (1.43–6.72)*
7	1.14 (0.96–1.34)	1.11 (0.98–1.25)	0–7	6.18 (1.96–19.50)*	3.43 (1.48–7.93)*
8	1.11 (0.95–1.29)	1.09 (0.98–1.22)	0–8	6.86 (2.01–23.37)*	3.75 (1.52–9.24)*
9	1.09 (0.94–1.26)	1.09 (0.97–1.21)	0–9	7.46 (2.04–27.32)*	4.07 (1.56–10.63)*
10	1.07 (0.91–1.26)	1.08 (0.96–1.22)	0–10	7.96 (2.03–31.25)*	4.40 (1.60–12.11)*
11	1.05 (0.85–1.29)	1.07 (0.92–1.25)	0–11	8.34 (1.97–35.37)*	4.72 (1.62–13.77)*
12	1.03 (0.79–1.35)	1.07 (0.88–1.30)	0–12	8.58 (1.82–40.48)*	5.03 (1.60–15.86)*

DTR diurnal temperature range

^*P < 0.05