Table 1.

Baseline characteristics of patients before treatment commencement (T0).

		Tinnitus status
	Total	compensated	decompensated	$p$-value
Number of subjects, n (%)	1490 (100)	1005 (67)	485 (33)
Age in years	49.8 $\pm$ 12.2	49.3 $\pm$ 12.4	50.8 $\pm$ 11.6	0.023 (TT)
Male sex, n (%)	735 (49)	514 (51)	221 (46)	0.050 (Chi)
Tinnitus duration in years, modus (%)	5 (33)	5 (32)	5 (35)	0.008 (MW)
Number of days until start of an intensive treatment	9.5 $\pm$ 27.0	8.9 $\pm$ 25.1	10.8 $\pm$ 30.5	<0.001 (MW)
TQ total score	38.6 $\pm$ 17.2	29.0 $\pm$ 10.9	58.6 $\pm$ 8.4	<0.001 (TT)
PSQ total score	0.5 $\pm$ 0.2	0.4 $\pm$ 0.2	0.6 $\pm$ 0.2	<0.001 (TT)
SF8 general health score	41.6 $\pm$ 7.1	43.5 $\pm$ 6.4	37.6 $\pm$ 6.6	<0.001 (MW)
ADSL depression score	18.2 $\pm$ 11.7	13.7 $\pm$ 9.2	27.3 $\pm$ 10.9	<0.001 (MW)
Clinical depression, n (%)	777 (52)	362 (36)	415 (86)	<0.001 (Chi)

Baseline characteristics for the patients with compensated tinnitus and patients with decompensated tinnitus, respectively. Continuous variables are expressed as mean $\pm$ standard deviation. Categorical variables are expressed as absolute frequency (percentage). $p$-values were calculated by unpaired two-tailed t-test (TT), Chi-square test (Chi) or two-tailed unpaired Mann-Whitney test (MW). TQ: German version of the Tinnitus Questionnaire²²; PSQ: Perceived Stress Questionnaire²⁰; SF8: Short Form 8 Health Survey²¹; ADSL: General Depression Scale Questionnaire - long form¹⁹.