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Table 1 Daily number of deaths and YLL in the elderly population born in different seasons

From: Impact of birth season on the years of life lost from respiratory diseases in the elderly related to ambient PM2.5 exposure in Ningbo, China

Variables

Mean ± SD

Minimum

P25

Median

P75

Maximum

Daily death counts

 Whole year

13.0 ± 5.4

2.0

9.0

12.0

16.0

32.0

 Spring-born

2.5 ± 1.7

0.0

1.0

2.0

4.0

10.0

 Summer-born

2.6 ± 1.8

0.0

1.0

2.0

4.0

10.0

 Autumn-born

3.9 ± 2.3

0.0

2.0

4.0

5.0

15.0

 Winter-born

4.0 ± 2.3

0.0

2.0

4.0

5.0

14.0

Daily years of life lost (years)

 Whole year

138.9 ± 59.2

12.7

96.3

128.0

170.8

361.1

 Spring-born

26.9 ± 19.2

0.0

12.2

24.4

37.8

104.8

 Summer-born

28.4 ± 20.7

0.0

12.9

25.0

39.4

130.4

 Autumn-born

41.3 ± 25.4

0.0

23.0

38.2

56.2

157.1

 Winter-born

42.3 ± 25.6

0.0

22.9

38.3

58.9

149.9