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Table 6 Standardised Mortality Ratios (SMR) by period of follow-up for Vietnam War national service Army nonveterans (comparisons)

From: Changes over time in the "healthy soldier effect"

Follow-up

0-9 years

10-19 years

20-29 years

30+ years

 

O*

E†

SMR 95% CI

O

E

SMR 95% CI

O

E

SMR 95% CI

O

E

SMR 95% CI

All deaths

204

351.9

0.58 (0.51, 0.67)

240

385.1

0.62 (0.55, 0.71)

484

688.6

0.70 (0.64, 0.77)

161

238.0

0.68 (0.58, 0.79)

Cancers

28

33.6

0.83 (0.58, 1.21)

49

72.3

0.68 (0.51, 0.90)

171

217.2

0.79 (0.68, 0.91)

72

97.5

0.74 (0.59, 0.93)

Lung cancer

1

1.2

0.87 (0.12, 6.15)

3

8.1

0.37 (0.12, 1.15)

31

43.8

0.71 (0.50, 1.01)

13

21.7

0.60 (0.35, 1.03)

Colorectal cancer

2

1.9

1.03 (0.26, 4.10)

6

8.1

0.74 (0.33, 1.64)

28

29.0

0.96 (0.67, 1.40)

10

12.9

0.78 (0.42, 1.44)

Circulatory diseases

8

25.7

0.31 (0.16, 0.62)

51

81.1

0.63 (0.48, 0.83)

148

194.1

0.76 (0.65, 0.90)

47

68.3

0.69 (0.52, 0.92)

Ischemic heart disease

4

8.9

0.45 (0.17, 1.19)

35

52.8

0.66 (0.48, 0.92)

103

136.2

0.76 (0.62, 0.92)

31

48.5

0.64 (0.45, 0.91)

Stroke

0

6.1

-

8

11.3

0.71 (0.35, 1.41)

18

23.8

0.76 (0.48, 1.20)

6

7.7

0.78 (0.35, 1.73)

External causes

159

247.6

0.64 (0.55, 0.75)

117

161.8

0.72 (0.60, 0.87)

90

133.8

0.67 (0.55, 0.83)

16

27.3

0.59 (0.36, 0.96)

Motor vehicle accidents

71

136.0

0.52 (0.41, 0.66)

33

53.0

0.62 (0.44, 0.88)

17

28.8

0.59 (0.37, 0.95)

4

5.0

0.79 (0.30, 2.12)

Suicides

15

46.5

0.32 (0.19, 0.54)

49

54.5

0.90 (0.68, 1.19)

43

57.8

0.74 (0.55, 1.00)

8

11.8

0.68 (0.34, 1.35)

  1. *Observed deaths
  2. †Expected deaths