Table 2.

Mental health and social characteristics of (edited out for blind review) who endorsed at least 1 PTSD symptom, stratified by intentional self-medication with alcohol, 2015–2016 (N = 28,935).

	Intentional Self-Medication with Alcohol
	Total N	%	Yes, N	%	No, N	%	p-Value *
a Number of Sources of Social Integration at Wave 4
0	217	0.8	54	24.9	163	75.1	<0.001
1	1366	4.8	345	25.3	1021	74.7
2	12,250	43.4	2905	23.7	9345	76.3
3	9596	34.0	1883	19.6	7713	80.4
4	4793	17.0	657	13.7	4136	86.3
b Social Support Score (0–20)
Mean	13.9		12.5		14.2		<0.001 **
Standard Deviation	5.3		5.3		5.2
c Life Satisfaction
1	6905	24.1	903	13.1	6002	86.9	<0.001
2	16,902	59.0	3441	20.4	13,461	79.6
3	4068	14.2	1323	32.5	2745	67.5
4	773	2.7	234	30.3	539	69.7
Endorse Re-Experiencing Cluster
Yes	10,947	37.8	2967	27.1	7980	72.9	<0.001
No	17,988	62.2	2994	16.6	14,994	83.4
Endorse Avoidance Cluster
Yes	6844	23.7	2441	35.7	4403	64.3	<0.001
No	22,091	76.3	3520	15.9	18,571	84.1
Endorse Hyperarousal Cluster
Yes	10,929	37.8	3525	32.3	7404	67.7	<0.001
No	18,006	62.2	2436	13.5	15,570	86.5
Numbers of Clusters Endorsed
0	13,790	47.7	1696	12.3	12,094	87.7	<0.001
1	6376	22.0	1340	21.0	5036	79.0
2	3963	13.7	1182	29.8	27,81	70.2
3	4806	16.6	1743	36.3	3063	63.7
History of Alcohol/Drug Problem
Yes	1433	5.0	782	54.6	651	45.4	<0.001
No	27,502	95.0	5179	18.8	22,323	81.2

^aN = 713 missing social integration; ^b N = 641 missing social support score; ^c N = 287 missing life satisfaction. * p-value using chi-square test; ** p-value using bivariate logistic regression.