Table 1

Socio-demographic, military and deployment characteristics by questionnaire type (Anonymous vs. Identifiable)
Identifiable (n = 296) Anonymous (n = 315) Chi2or 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

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

Fear et al.

Fear et al. BMC Public Health 2012 12:797   doi:10.1186/1471-2458-12-797

Open Data