Table 4.

Factor analysis of depressive symptoms using the PHQ-9 questionnaire

	Factor Loadings
Depressive symptoms	Factor 1
Little interest or pleasure in doing things	0.55
Feeling down, depressed, or hopeless	0.78
Trouble falling or staying asleep	0.39
Feeling tired or having little energy	0.57
Poor appetite or overeating	0.45
Feeling bad about self	0.72
Trouble concentrating	0.48
Moving or speaking slowly	0.51
Thoughts of being better off dead	0.58
Eigenvalue	2.96
% Variance	69.8