Table 2

ML-factor analysis with loadings of the DESY-PAT-1 and ML-factor analysis based on polychoric correlations with rotated loadings of the DESY-PAT-2, descriptive values

DESY-PAT-1	Factor			h²	M	SD	r_it	V
Items	1 (environmental factors)*
5 Do you currently have any financial difficulties?	0.86			0.74	0.10	0.29	0.42	2.65
7 Have you had depressive phases before?	0.56			0.31	0.38	0.49	0.41	0.51
4 Do you currently experience difficulties at work?	0.55			0.30	0.19	0.39	0.26	1.59
2 Do you currently have any family problems and/or difficulties in your romantic relationship?	0.54			0.30	0.29	0.46	0.28	0.91
3 Do you currently have difficulties with friends and acquaintances?	0.51			0.26	0.15	0.36	0.23	1.90
8 Are you taking medication to treat any mental illnesses (psychopharmacological drugs)?	0.46			0.21	0.09	0.28	0.21	2.90
1 Do you suffer from frequently occurring pain?	0.39			0.15	0.36	0.48	0.13	0.59
6 Are you burdened by raising children?	0.35			0.12	0.10	0.29	0.22	2.73
DESY-PAT-2	Factors			h ²	M	SD	r _it	V
Items	1 (depressive cognition)	2 (suicidality)	3 (symptoms of fatigue)
4 In the last 2 weeks, have you had more problems concentrating than usual?	0.80	−0.07	0.14	0.74	0.35	0.48	0.60	0.64
5 In the last 2 weeks, have you been ruminating more than usual?	0.78	−0.05	0.14	0.73	0.36	0.48	0.66	0.57
17 In the last 2 weeks, have you been more irritable than usual?	0.72	0.00	0.07	0.60	0.23	0.42	0.52	1.30
7 In the last 2 weeks, have you felt guilty?	0.71	0.17	−0.16	0.52	0.21	0.40	0.46	1.45
6 In the last 2 weeks, have you found decision-making more challenging than usual?	0.64	0.06	0.16	0.63	0.17	0.38	0.57	1.72
1 In the last 2 weeks, have you felt down and/or sad often?	0.58	0.21	0.23	0.78	0.35	0.48	0.63	0.62
2 In the last 2 weeks, have you had significantly less pleasure in things you usually like to do?	0.55	0.39	0.10	0.82	0.24	0.43	0.69	1.22
16 In the last 2 weeks, have you felt like you were failing?	0.51	0.42	0.04	0.73	0.23	0.42	0.59	1.87
18 In the last 2 weeks, have you been concerned about things or situations that usually do not bother you?	0.51	0.01	0.23	0.48	0.24	0.43	0.49	1.22
19 In the last 2 weeks, have you felt like life is not worth living?	−0.21	1.00	0.19	0.96	0.05	0.22	0.68	3.99
20 In the last 2 weeks, have you thought you would rather be dead?	0.07	0.90	−0.07	0.83	0.04	0.20	0.57	4.65
14 In the last 2 weeks, have you felt like everything is hopeless?	0.25	0.84	−0.07	0.92	0.10	0.31	0.72	2.56
15 In the last 2 weeks, have you felt like everything is meaningless?	0.25	0.82	−0.01	0.89	0.09	0.28	0.71	2.88
8 In the last 2 weeks, have you felt lonely?	0.10	0.40	0.34	0.50	0.21	0.41	0.37	1.42
11 In the last 2 weeks, have you felt tired and/or exhausted more often than usual?	0.07	−0.15	0.95	0.88	0.48	0.50	0.64	0.10
12 In the last 2 weeks, have you felt listless and without energy?	0.00	0.16	0.88	0.91	0.34	0.47	0.74	0.68
13 In the last 2 weeks, has everything been more stressful for you than usual?	0.12	0.00	0.75	0.69	0.35	0.48	0.67	0.62
10 In the last 2 weeks, did you find everyday activities (eg, getting up, eating, going to work) more difficult to perform than usual?	0.08	0.17	0.72	0.74	0.30	0.46	0.67	0.88
3 In the last 2 weeks, have you had less interest in your activities than usual?	0.43	0.11	0.47	0.77	0.26	0.44	0.61	1.10
9 In the last 2 weeks, have you found yourself reducing your social encounters?	0.22	0.17	0.38	0.43	0.21	0.40	0.47	1.45

Highest loadings are printed bold.
*Factor was tested independently.
DESY-PAT-1, Questionnaire for the assessment of DEpression SYmptoms in Primary Care, self-rating part for patients 1; DESY-PAT-2, Questionnaire for the assessment of DEpression SYmptoms in Primary Care, self-rating part for patients 2; h², communality score; M, mean; ML, maximum-likelihood; r_it, discriminatory power; V, skewness.