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Table 1 Summary statistics for daily variables and cardiovascular diseases (CVD) cases in Dingxi, China, 2015–2019

From: Impact of diurnal temperature range on cardiovascular disease hospital admissions among Chinese farmers in Dingxi (the Northwest China)

Variable

Sum

Mean

SD

Frequency distribution

Min

P (25)

P (50)

P (75)

Max

Mean temperature (°C)

–

8.24

9.55

− 17.9

0.2

9.7

16.7

24.9

Relative humidity (%)

–

58.99

15.28

16

48

61

71

93

Pressure (hPa)

–

810.4

4.17

797.4

807.3

810.2

813.3

823.1

Wind velocity (m/s)

–

1.79

0.59

0

1.4

1.7

2.2

4.5

Rainfall (mm)

–

1.11

3.73

0

0

0

0.1

54.3

DTR (°C)

–

11.76

4.74

1.6

8

12

15.3

26.2

All

24,940

20

13

1

12

17

25

277

Male

10,608

9

6

1

5

7

10

107

Female

14,332

11

8

1

7

10

14

168

 < 65 years

14,568

12

9

1

7

11

16

172

 ≥ 65 years

10,372

8

6

1

5

8

11

105