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Table 2 Summary of Air Pollution Date (2013–2017)

From: Associations between PM2.5 exposure and Alzheimer’s Disease prevalence Among elderly in eastern China

Exposure Year

Percentiles

Mean ± Standard Deviation

Min

Max

25th

50th

75th

IQR

2017

32.69 ± 1.76

24.98

38.97

32.06

33.25

33.71

1.65

2016

34.72 ± 1.80

27.20

41.68

34.14

35.28

35.84

1.72

2015

35.89 ± 2.09

27.41

44.24

35.17

36.25

37.14

1.97

2014

37.76 ± 2.49

28.24

45.68

36.81

38.00

39.08

2.27

2013

39.67 ± 2.95

29.13

46.42

38.48

39.93

41.34

2.86

  1. Abbreviations: 25th 25th percentile, 50th 50th percentile, 75th 75th percentile, IQR the inter quartile range
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Environmental Health

ISSN: 1476-069X