Table 2 Weighted^a prevalence of mental health disorders in the KCMHR military health study by key demographics, % and 95% confidence intervals (CI)

Age at interview (years)

< 30

5.4%

1.9 - 14.2

23.2%

13.9 - 36.3

44.1%

31.2 - 57.8

30-34

8.8%

3.6 - 20.1

11.1%

5.6 - 20.6

19.3%

11.0 - 31.6

35-39

2.7%

1.6 - 4.5

14.7%

8.6 - 24.2

18.4%

11.3 - 28.7

40-44

5.5%

2.9 - 10.3

12.6%

7.5 - 20.4

12.0%

7.0 - 20.0

45+

2.9%

1.3 - 6.3

9.3%

5.3 - 16.0

7.2%

3.8 - 13.2

p-value^b

0.18

0.13

< 0.01

Sex

Male

5.1%

3.4 - 7.7

14.1%

10.9 - 18.1

19.5%

15.5 - 24.1

Female

1.9%

0.8 - 4.2

8.4%

4.1 - 16.3

5.9%

2.3 - 14.0

p-value^b

0.02

0.15

< 0.01

Educational attainment at phase 1

No qualifications

18.4%

7.3 - 39.1

23.3%

11.9 - 40.6

28.4%

13.7 - 49.7

O level equivalent

4.3%

2.3 - 8.0

15.0%

10.2 - 21.7

23.2%

16.6 - 31.3

A level equivalent

2.8%

1.7 - 4.5

15.7%

9.6 - 24.6

14.9%

9.2 - 23.4

Degree

5.2%

2.3 - 11.3

6.9%

3.9 - 12.1

13.1%

7.8 - 21.3

p-value^b

< 0.01

0.05

0.11

Marital status at interview

Single/not cohabiting

6.8%

3.0 - 14.8

16.7%

9.7 - 27.1

28.4%

18.8 - 40.5

Married/long-term relationship

4.1%

2.6 - 6.6

11.6%

8.4 - 15.7

14.6%

10.8 - 19.5

Divorced/separated/widowed

5.8%

1.9 - 16.3

19.8%

10.8 - 33.4

23.3%

13.4 - 37.4

p-value^b

0.56

0.20

0.02

Vulnerability factors

0 or 1

5.5%

2.4 - 12.1

6.0%

2.9 - 11.7

10.9%

5.6 - 19.9

2 or 3

2.0%

1.2 - 3.1

10.2%

6.0 - 16.7

13.7%

8.9 - 20.6

4 or 5

2.4%

1.3 - 4.3

14.9%

8.5 - 24.8

25.8%

16.7 - 37.7

6+

10.3%

5.3 - 18.9

20.9%

13.8 - 30.5

26.5%

17.9 - 37.3

p-value^b

< 0.01

0.01

0.01

Rank^c

Officer

4.6%

2.0 - 10.4

3.6%

1.5 - 8.1

10.2%

5.9 - 17.0

Other rank

4.9%

3.2 - 7.5

17.5%

13.6 - 22.3

21.3%

16.7 - 26.7

p-value^b

0.90

< 0.01

0.01

Medical downgrading since Jan 2003

No

4.9%

3.1 - 7.5

13.9%

10.5 - 18.2

20.0%

15.7 - 25.0

Yes

4.6%

2.0 - 10.3

12.0%

7.5 - 18.7

10.9%

6.4 - 18.0

p-value^b

0.89

0.59

0.03

Serving status at interview

Serving

4.8%

3.0 - 7.6

12.0%

8.9 - 15.9

17.9%

13.9 - 22.8

Veteran

4.8%

2.7 - 8.5

19.0%

12.3 - 28.4

18.5%

11.5 - 28.4

p-value^b

> 0.99

0.08

0.91

Service

Naval service

2.7%

1.3 - 5.6

5.2%

2.9 - 9.2

9.2%

3.8 - 20.8

Army

6.2%

4.0 - 9.5

13.0%

9.7 - 17.1

21.6%

16.9 - 27.1

Royal Air Force

1.2%

0.6 - 2.6

20.3%

12.1 - 32.0

11.1%

5.9 - 20.0

p-value^b

< 0.01

0.02

0.02

Role in parent unit at phase 1

Combat

7.9%

4.2 - 14.5

14.5%

8.9 - 22.8

26.4%

17.5 - 37.7

Combat support

2.2%

1.0 - 4.8

9.9%

3.8 - 23.4

26.8%

13.5 - 46.2

Combat service support

4.4%

2.6 - 7.3

13.4%

9.9 - 17.9

13.2%

9.8 - 17.6

p-value^b

0.10

0.76

0.01

Status at phase 1

Regular

5.1%

2.8 - 9.1

15.5%

10.9 - 21.6

21.4%

15.6 - 28.2

Reserve

4.5%

2.8 - 7.1

11.3%

8.2 - 15.4

14.4%

10.4 - 19.5

p-value^b

0.74

0.18

0.07

Previous deployments (by status at phase 1)

Regulars & reserves:

None

1.5%

0.8 - 2.9

9.7%

5.7 - 16.0

14.2%

8.5 - 22.9

TELIC 1

5.8%

3.4 - 9.8

13.1%

8.8 - 19.0

16.9%

11.5 - 24.1

TELIC 2 or later

4.3%

2.1 - 8.5

17.2%

11.2 - 25.6

25.2%

17.8 - 34.4

Other recent deployments

10.2%

3.5 - 26.2

13.7%

5.6 - 29.6

12.1%

4.8 - 27.1

p-value^b

0.06

0.46

0.14

Regulars:

None

2.4%

1.0 - 5.6

10.5%

4.4 - 23.0

16.6%

7.1 - 34.1

TELIC 1

4.8%

1.6 - 13.9

12.8%

6.2 - 24.6

23.5%

13.4 - 37.9

TELIC 2 or later

4.6%

1.8 - 11.2

20.2%

12.1 - 31.9

26.4%

17.0 - 38.5

Other recent deployments

9.5%

2.5 - 29.6

15.0%

5.5 - 35.0

11.8%

4.0 - 30.0

p-value^b

0.46

0.55

0.40

Reserves:

None

1.0%

0.4 - 2.7

9.2%

4.7 - 17.4

12.7%

6.6 - 23.1

TELIC 1

6.5%

3.6 - 11.4

13.3%

8.4 - 20.4

12.3%

7.3 - 19.9

TELIC 2 or later

3.4%

1.6 - 7.0

10.7%

5.5 - 19.8

22.6%

12.7 - 36.9

Other recent deployments

13.3%

2.3 - 49.7

8.3%

2.9 - 21.5

13.3%

2.3 - 49.7

p-value^b

0.04

0.66

0.43