Table 2.

Patient Health Questionnaire-9

Over the last 2 weeks, how often have you been bothered by the following problems?

1. Little interest or pleasure in doing things?a Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 2. Feeling down, depressed, or hopeless?a Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 3. Trouble falling asleep, staying asleep, or sleeping too much? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 4. Feeling tired or having little energy? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 5. Poor appetite or overeating? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 6. Feeling bad about yourself—or that you’re a failure or have let yourself or your family down? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 7. Trouble concentrating on things, such as reading the newspaper or watching television? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 8. Moving or speaking so slowly that other people have noticed? Or, the opposite? Being so                                                fidgety or restless that you have been moving around a lot more than usual? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3 9. Thoughts that you would be better off dead or of hurting yourself in some way? Not at all = 0 Several days = 1 More than half the days = 2 Nearly every day = 3

^aThese questions comprise the Patient Health Questionnaire-2