Table 2. Hierarchical Regression Analysis of PTSD Symptoms.

Variable	Study A (RHS-15 sum-score as dependent variable)a		Study B (PCL-5 sum-score as dependent variable)b
	B [95% CI]	p	B [95% CI]	p
Step 1
Age	0.15 [0.00, 0.30]	.046*	0.12 [-0.14, 0.39]	.351
Gender	-5.47 [-9.61, -1.33]	.010*	-15.29 [-23.70, -6.88]	.001*
Number traumatic event types reported	0.92 [0.45, 1.30]	< .001*	1.02 [0.37, 1.68]	.003*
Time since arrival in Germanyc	-.04 [-0.22, 0.14]	.657	0.49 [0.17, 0.82]	.004*
Step 2
Age	0.14 [-0.01, 0.28]	.059	0.16 [-0.08, 0.40]	.187
Gender	-5.35 [-9.32, -1.38]	.009*	-16.33 [-24.09, -8.56]	< .001*
Number traumatic event types reported	0.67 [0.20, 1.14]	.005*	0.71 [0.09, 1.34]	.026*
Time since arrival in Germanya	-0.04 [-0.21, 0.14]	.640	0.45 [0.14, 0.75]	.004*
Insecure residence status	6.65 [3.30, 10.00]	< .001*	12.38 [5.13, 19.63]	.001*

^aR² = .12 for Step 1 (p < .001); ∆R² = .08 for Step 2 (p < .001). Listwise deletion. N = 167. ^bR² = .34 for Step 1 (p < .001); ∆R² = .11 for Step 2 (p = .001). Listwise deletion. N = 64. ^cin month.

*p ≤ .05.