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Table 2 Descriptive statistics for air pollution during different time windows attributed to pregnancy women (n = 1190)

From: Effects of ambient air pollution, fresh fruit and vegetable intakes as well as maternal psychosocial stress on the outcome of newborn otoacoustic emission hearing screening

Variables

Mean ± SD

Min

P25

P50

P75

Max

IQR

The first trimester

 PM10(μg/m3)

80.58 ± 10.86

49.78

72.76

81.94

88.43

106.91

15.67

 PM2.5(μg/m3)

49.15 ± 11.31

24.31

40.02

47.82

56.01

81.91

15.99

 CO(mg/m3)

1.05 ± 0.16

0.66

0.92

1.04

1.16

1.49

0.23

 NO2(μg/m3)

40.17 ± 8.40

9.53

33.79

41.22

46.34

59.83

12.55

 SO2(μg/m3)

14.56 ± 2.62

6.38

12.4

14.36

16.57

21.16

4.17

The second trimester

 PM10(μg/m3)

57.31 ± 13.72

36.37

47.58

52.3

63.11

104.3

15.53

 PM2.5(μg/m3)

33.34 ± 12.65

19.29

25.77

28.03

32.1

72.13

6.33

 CO(mg/m3)

0.94 ± 0.13

0.7

0.85

0.93

1.02

1.57

0.17

 NO2(μg/m3)

30.82 ± 6.84

15.68

26.4

29.95

33.61

57.07

7.21

 SO2(μg/m3)

13.59 ± 1.59

9.36

12.67

13.73

14.6

20.06

1.93

The third trimester

 PM10(μg/m3)

68.63 ± 15.37

40.4

55.33

68.18

80.06

116.65

24.73

 PM2.5(μg/m3)

48.23 ± 15.02

19.77

34.07

48.32

60.77

85.72

26.7

 CO(mg/m3)

1.00 ± 0.28

0.67

0.82

0.92

1.08

2.86

0.26

 NO2(μg/m3)

37.15 ± 8.32

17.85

30.98

37.69

42.81

60.62

11.83

 SO2(μg/m3)

13.51 ± 1.63

9.79

12.32

13.53

14.38

20.31

2.07