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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