Predictors of PTSD and CPTSD in UK firefighters

Figures & data

Table 1. Descriptive statistics for sample stratified by probable diagnostic status

	ICD-11 CPTSD (N = 237)		ICD-11 PTSD (N = 73)		Non-symptomatic (N = 990)		Total (N = 1300)
	N	%	N	%	N	%	N	%
Gender
Male	224	94.5	70	95.9	953	96.3	1247	95.9
Female	13	5.5	3	4.1	37	3.7	53	4.1
Marriage atatus
Single	12	5.1	1	1.4	47	4.7	60	4.6
Married	167	70.5	61	83.6	746	75.4	974	74.9
Divorced, separated or widowed	31	13.1	6	8.2	77	7.8	114	8.8
Living with partner	25	10.5	5	6.8	116	11.7	146	11.2
Firefigher rank (highest held)
Firefighter/control operator	72	30.4	16	21.9	271	27.4	359	27.6
Crew manager	53	22.4	17	23.3	206	20.8	276	21.2
Watch manager	52	21.9	18	24.7	249	25.2	319	24.5
Station manager	27	11.4	14	19.2	128	12.9	169	13.0
Group manager or higher	28	11.8	6	8.2	122	12.3	156	12.0
Education
GCSE or lower	103	43.5	40	54.8	371	37.5	514	39.5
A level	45	19.0	11	15.1	197	19.9	253	19.5
HNC/HND or equivalent	45	19.0	8	11.0	196	19.8	249	19.2
BSc and higher	44	18.6	14	19.2	226	22.8	284	21.8
	Mean	(SD)	Mean	(SD)	Mean	(SD)	Mean	(SD)
Age	48.92	(8.30)	48.05	(7.645)	47.08	(9.044)	47.47	(8.86)
Total service-related trauma	8.79	(1.80)	9.17	(1.37)	8.11	(1.84)	8.30	(1.85)
Total personal trauma	3.55	(1.84)	3.23	(1.60)	2.84	(1.62)	2.99	(1.68)

Table 2. Results of the multinomial logistic regression predicting probable diagnostic status (‘no diagnosis’ is the reference category)

	ICD-11 CPTSD				ICD-11 PTSD
	B	se	OR (95% CI)	p	B	se	OR (95% CI)	p
Age	0.018	.011	1.018 (.997–1.039)	.086	−0.020	.018	0.980 (.947–1.014)	.251
Gender
Male	−0.553	.390	0.575 (.268–1.235)	.156	−0.695	.655	0.499 (.138–1.803)	.289
Female
Marriage status
Single	0.361	.410	1.434 (.642–3.204)	.379	−0.527	1.120	0.590 (.066–5.297)	.638
Married	−0.014	.257	0.986 (.596–1.633)	.957	0.594	.495	1.812 (.687–4.779)	.230
Divorced, separated or widowed	0.563	.330	1.756 (.920–3.353)	.088	0.518	.646	1.679 (.473–5.956)	.423
Living with partner	0^b	.			0^b	.
Firefighter rank (highest held)
Firefighter/control operator	0.577	.289	1.781 (1.012–3.137)	.045	0.412	.547	1.509 (.517–4.409)	.452
Crew manager	0.375	.292	1.454 (.821–2.578)	.200	0.565	.533	1.759 (.619–4.999)	.289
Watch manager	0.085	.282	1.089 (.626–1.893)	.763	0.527	.516	1.695 (.617–4.655)	.306
Station manager	0.043	.311	1.044 (.568–1.920)	.890	0.882	.521	2.415 (.870–6.700)	.090
Group manager or higher	0^b				0^b
Education
GCSE or lower	0.251	.228	1.285 (.821–2.010)	.272	0.571	.357	1.771 (.880–3.562)	.109
A level	0.208	.257	1.231 (.744–2.036)	.419	−0.192	.438	0.825 (.350–1.946)	.661
HNC/HND or equivalent	0.212	.252	1.236 (.755–2.025)	.399	−0.588	.489	0.555 (.213–1.450)	.230
BSc and higher	0^b				0^b
Total service-related trauma	0.165	.053	1.180 (1.063–1.310)	.002	0.421	0.097	1.523 (1.259–1.843)	.000
Total personal trauma	0.175	.053	1.191 (1.074–1.320)	.001	−0.037	0.083	0.964 (.818–1.135)	.657

Significant effects are presented in bold. ^b = reference category.

Data availability statement

Due to the nature of this research, participants of this study did not agree for their data to be shared publicly, so supporting data is not available.