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Table 1 Socio-demographic, military and deployment characteristics by questionnaire type (Anonymous vs. Identifiable)

From: Does anonymity increase the reporting of mental health symptoms?

 

Identifiable (n = 296)

Anonymous (n = 315)

Chi2 or t-test statistic (degrees of freedom), P value

 

n (%)

n (%)

 

Sex

Men

266 (89.9)

262 (87.6)

0.75 (1), P = 0.388

Women

30 (10.1)

37 (12.4)

 

Missing data

-

16

 

Mean age in years

27.9

27.6

0.48 (597), P = 0.631

(95% confidence interval)

(27.0-28.7)

(26.7-28.4)

 

Missing data

3

9

 

Enlistment type

Regular

281 (94.9)

296 (94.0)

0.27 (1), P = 0.603

Reserve

15 (5.1)

19 (6.0)

 

Service

Naval Service

10 (3.4)

29 (9.2)

8.69 (2), P = 0.013

Army

249 (84.1)

248 (78.7)

 

Royal Air Force

37 (12.5)

38 (12.1)

 

Rank

Junior

208 (70.5)

223 (71.0)

0.14 (2), P = 0.932

Senior

51 (17.3)

51 (16.2)

 

Officer

36 (12.2)

40 (12.7)

 

Missing data

1

1

 

Thought might be killed

No

204 (69.9)

223 (73.1)

0.77 (1), P = 0.379

Yes

88 (30.1)

82 (26.9)

 

Missing data

4

10

 

Number of traumatic events experienced*

None

103 (35.0)

99 (31.5)

1.94 (2), P = 0.380

1-2

86 (29.3)

108 (34.4)

 

3+

105 (35.7)

107 (34.1)

 

Missing data

2

1

 
  1. *Sum of number of times experienced a range of combat related events.