Table 1

Characteristics of Millennium Cohort Study Participants by Panel and Deployment Experience

Panel 1

Panel 2

Panel 3


All Participants

2001-2009 Deployment Experienceb

Previous Deployment Experiencec

All Participants

2001-2009 Deployment Experienceb

All Participants

2001-2009 Deployment Experienceb

N = 77 047

N = 35 564

N = 28 897

N = 31 110

N = 19 598

N = 43 440

N = 27 777


n (%)a

%

%

n (%)a

%

n (%)a

%


Gender

Male

56 415 (73.2)

80.5

86.7

19 167 (61.6)

68.0

27 941 (64.3)

71.1

Female

20 632 (26.8)

19.5

13.3

11 943 (38.4)

32.0

15 499 (35.7)

28.9

Birth year

Before 1960

16 652 (21.6)

13.4

18.0

226 (0.7)

0.6

69 (0.2)

0.1

1960-1969

29 177 (37.9)

39.3

45.7

1678 (5.4)

4.4

735 (1.7)

1.4

1970-1979

26 672 (34.6)

40.6

35.3

9934 (31.9)

29.7

6820 (15.7)

15.3

1980 or later

4546 (5.9)

6.7

1.0

19 272 (62.0)

65.4

35 816 (82.4)

83.3

Military rank

Enlisted

59 318 (77.0)

76.8

78.0

27 482 (88.3)

88.5

38 455 (88.5)

88.5

Officer

17 729 (23.0)

23.2

22.0

3628 (11.7)

11.5

4985 (11.5)

11.5

Service component

Reserve/National Guard

33 157 (43.0)

37.3

25.6

12 459 (40.1)

34.9

8992 (20.7)

17.0

Active duty

43 890 (57.0)

62.7

74.4

18 651 (60.0)

65.1

34 448 (79.3)

83.0

Service branch

Army

36 481 (47.4)

49.3

38.5

14 995 (48.2)

54.9

15 798 (36.4)

40.6

Air Force

22 357 (29.0)

30.2

37.5

8276 (26.6)

23.5

12 918 (29.7)

26.8

Navy

14 268 (18.5)

15.3

19.8

5263 (16.9)

14.2

7922 (18.2)

15.0

Marine Corps

3941 (5.1)

5.1

4.3

2576 (8.3)

7.4

6802 (15.7)

17.5

Military occupation

Combat specialists

15 425 (20.0)

23.7

24.0

4868 (15.7)

18.9

6591 (15.2)

18.4

All others

61 622 (80.0)

76.3

76.0

26 242 (84.4)

81.1

36 849 (84.8)

81.6


a Percentages rounded up and may not sum to 100.

b Deployed in support of the Global War on Terrorism between September 1, 2001, and August 31, 2007.

c Deployed to the 1991 Gulf War or to Bosnia, Kosovo, or Southwest Asia between 1998 and 2000.

Smith et al. BMC Public Health 2011 11:69   doi:10.1186/1471-2458-11-69

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