Table 1

The Patient Health Questionnaire-9.

Over the past 2 weeks, how often have you been bothered by any of the following roblems?Not At AllSeveral DaysMore Than Half the DaysNearly Every Day
1. Little interest or pleasure in doing things0123
2. Feeling down, depressed, or hopeless0123
3. Trouble falling asleep, staying asleep, or sleeping too much0123
4. Feeling tired or having little energy0123
5. Poor appetite or overeating0123
6. Feeling bad about yourself—or that you’re a failure or have let yourself or your family down0123
7. Trouble concentrating on things, such as reading the newspaper or watching television0123
8. 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 usual0123
9. Thoughts that you would be better off dead or of hurting yourself in some way0123
10. If you checked off any problems, how difficult have those problems made it for you to do your work, take care of things at home, or get along with other people?Not difficult at allSomewhat difficultVery difficultExtremely difficult