Table 4.

Principal component analysis of Euro-D.

	Factor 1	Factor 2	Factor 3	Factor 4
Eigenvalue	3.1	1.5	1.1	1.0
Variance (%)	26	12	9	9
Depression	0.65	0.03	0.34	−0.18
Pessimism	−0.03	0.08	−0.02	0.92
Suicidality	0.64	0.26	−0.02	0.04
Guilt	0.56	0.19	0.02	−0.22
Sleep	−0.03	0.06	0.79	−0.21
Interest	0.09	0.60	0.37	0.17
Irritability	0.42	0.23	0.43	−0.17
Appetite	0.24	0.01	0.69	0.28
Fatigue	0.55	0.20	0.34	0.17
Concentration	0.17	0.68	0.00	0.10
Enjoyment	−0.00	0.83	0.01	0.01
Tearfulness	0.73	−0.12	−0.00	0.08

Bold figures indicate items loading at >0.60.