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Table 2 Characteristics of daily cases for OA and RA in Hefei, China, during 2014–2017

From: Effect of ambient temperature on outpatient admission for osteoarthritis and rheumatoid arthritis in a subtropical Chinese city

Group

Total admissions of OA/RA

Mean ± SD

Percentile

5

25

50

75

95

Osteoarthritis

 Total

24,838

17.0 ± 11.8

0.0

7.0

16.0

25.0

38.0

 Male

7306

5.0 ± 4.0

0.0

2.0

4.0

7.0

12.0

 Female

17,532

12.0 ± 8.6

0.0

5.0

11.0

18.0

27.0

  < 17 years

430

0.3 ± 0.6

0.0

0.0

0.0

0.0

1.0

 18 ~ years

4526

3.1 ± 2.6

0.0

1.0

3.0

5.0

8.0

 41 ~ years

14,732

10.1 ± 7.4

0.0

4.0

9.0

15.0

24.0

 66 ~ years

5149

3.5 ± 3.2

0.0

1.0

3.0

5.0

10.0

Rheumatoid arthritis

 Total

43,935

30.1 ± 20.1

0.0

7.0

34.0

46.0

58.0

 Male

7708

5.28 ± 4.1

0.0

2.0

5.0

8.0

13.0

 Female

36,227

24.8 ± 16.8

0.0

6.0

28.0

39.0

49.0

  < 17 years

199

0.14 ± 0.4

0.0

0.0

0.0

0.0

1.0

 18 ~ years

7297

5.0 ± 3.9

0.0

1.0

5.0

8.0

12.0

 41 ~ years

38,564

19.6 ± 13.5

0.0

1.0

5.0

8.0

12.0

 66 ~ years

7873

5.39 ± 4.3

0.0

1.0

5.0

9.0

13.0