Table 5 . Predictors of change over time in self-reported monthly outpatient service costs in € (multiple linear regression) .

		B	SE	P	95% CI
Constant		100.79	160.14	0.513	-219.239 – 437.855
Gendera	Female	-20.67	51.53	0.666	-146.474 – 57.296
Age	Years	1.52	2.18	0.475	-1.983 – 6.810
Marital statusb	Married	0.79	82.29	0.991	-159.064 – 159.086
	Other	-37.32	60.56	0.522	-147.902 – 97.530
Educational levelc	Middle track	-65.76	136.38	0.564	-405.598 – 160.688
	Low track	-40.04	123.71	0.671	-334.740 – 216.492
Workd	Not working	-28.03	53.49	0.609	-139.488 – 71.784
Diagnosis; ICD-10e	F2	-8.38	61.30	0.895	-122.567 – 120.913
	Other	78.83	119.17	0.546	-117.676 – 336.135
Illness severity; OQ-45.2	TOT	-2.32	1.49	0.152	-5.529 – 0.117
Length of index stay	Days	2.35	0.82	0.024	1.011 – 4.287

Reference categories: ^a male; ^b single; ^c high track; ^d full-/part-time; ^e F3. R² = 0.211; F = 1.195 (P = 0.316).