Table 7.

Distribution of responses on the Patient Health Questionnaire.

Patient Health Questionnaire (PHQ-9)		Frequency	Percentages
Little interest or pleasure in doing things	Not at all	2175	21.6
	Several days	5087	50.5
	More than half days	1623	16.1
	Nearly everyday	1182	11.7
Feeling down, depressed or hopeless	Not at all	2445	24.3
	Several days	5083	50.5
	More than half days	1529	15.2
	Nearly everyday	1010	10.0
Trouble falling or staying asleep, or sleeping too much	Not at all	3400	33.8
	Several days	3970	39.4
	More than half days	1560	15.5
	Nearly everyday	1137	11.3
Feeling tired or having little energy	Not at all	3470	34.5
	Several days	4533	45.0
	More than half days	1320	13.1
	Nearly everyday	744	7.4
Poor appetite or overheating	Not at all	4979	49.5
	Several days	3444	34.2
	More than half days	1046	10.4
	Nearly everyday	598	5.9
Feeling bad about yourself-or that you are a failure or have let yourself or your family down	Not at all	5903	58.6
	Several days	2739	27.2
	More than half days	739	7.3
	Nearly everyday	686	6.8
Trouble concentrating on things, such as reading the newspaper or watching television	Not at all	3222	32.0
	Several days	–	–
	More than half days	5632	55.9
	Nearly everyday	1213	12.0
Moving or speaking so slowly that other people could have noticed. Or the opposite-being so fidgety or restless that you have been moving around a lot more than usual	Not at all	6697	66.5
	Several days	2421	24.0
	More than half days	607	6.0
	Nearly everyday	342	3.4
Thoughts that you would be better off dead, or of hurting yourself	Not at all	8290	82.3
	Several days	1228	12.2
	More than half days	284	2.8
	Nearly everyday	265	2.6