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Table 3 All-cause SMR among people exposed to MG in Sardasht, Iran according to independent variable

From: Mortality rate of people exposed to Mustard Gas during Iran-Iraq war in Sardasht, Iran: a 32 years retrospective cohort study

 

Person-years

Observed death

Expected death

SMR

SMR (95% CI)

Total

38,198.63

148

217.65

0.68

0.574 – 0.798

Age at exposure time

Under 20

15,838.86

12

22.78

0.526

0.272 – 0.922

20–40

17,417.25

54

65.35

0.826

0.621 – 01.079

Above 40

4942.52

82

129.5

0.633

0.503 – 0.786

Sex

Male

15,262.03

45

62.75

0.717

0.523 – 0.959

Female

22,936.6

103

154.9

0.665

0.542 – 0.806

Years

1987—1990

4219.68

0

15.94

0

0 – 0.231

1991—1995

6024.19

0

20.49

0

0 – 0.180

1996—2000

6020.38

9

29.01

0.31

0.141 – 0.588

2001—2005

6016.19

20

32.35

0.618

0.377 – 0.954

2006—2010

6007.68

39

39.9

0.977

0.695 – 1.336

2011—2015

6006.68

43

45.44

0.946

0.684 – 1.274

2016 -2019

3903.83

36

34.53

1.042

0.730 – 1.443

Years

Lung

No symptom

12,040.78

41

60.99

0.672

0.483 – 0.913

Mild

20,238.39

64

112.66

0.568

0.437 – 0.726

Moderate

5305.31

31

38.94

0.796

1.133 – 0.542

Severe

614.15

12

5.06

2.371

4.250 – 1.257

Skin

No symptom

29,166.51

105

152.18

0.689

0.564 – 0.835

Mild

7496.99

35

56.54

0.619

0.431 – 0.862

Moderate

1339.96

7

8.01

0.873

1.823 – 0.355

Severe

195.17

1

0.91

1.098

6.916 – 0.031

Eye

No symptom

31,574.67

117

171.17

0.683

0.565 – 0.819

Mild

6272.75

30

44.35

0.676

0.457 – 0.968

Moderate

318.46

1

1.9

0.526

3.158 – 0.014

Severe

32.75

0

0.23

0

0

Evacuation and hospital admission status

EA

12,969.08

73

96.8

0.754

0.591 – 0.949

NEA

25,229.55

75

120.85

0.62

0.488 – 0.778