Paper

Personal Health Questionnaire Depression Scale (PHQ-8)

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

(circle one number on each line) How often during the past 2 weeks were you bothered by...

Not at all Several days More than half the days Nearly every day

1. Little interest or pleasure in doing things ...................................................... 0 2. Feeling down, depressed, or hopeless .............. 0 3. Trouble falling or staying asleep, or sleeping too much ............................................. 0 4. Feeling tired or having little energy.................... 0 5. Poor appetite or overeating ............................... 0 6. Feeling bad about yourself, or that you are a failure, or have let yourself or your family down ............................................... 0 7. Trouble concentrating on things, such as reading the newspaper or watching television ........................................................... 0 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 usual ....... 0

1 1

2 2

3 3

1 1 1

2 2 2

3 3 3

1

2

3

1

2

3

1

2

3

Scoring

If two consecutive numbers are circled, score the higher (more distress) number. If the numbers are not consecutive, do not score the item. Score is the sum of the 8 items. If more than 1 item missing, set the value of the scale to missing. A score of 10 or greater is considered major depression, 20 or more is severe major depression.

Characteristics

Tested on 1165 subjects with chronic conditions.

No. of items Observed Range Standard Deviation Internal Consistency Reliability Test-Retest Reliability

Mean

8

0-24

6.63

5.52

.86

NA

Source of Psychometric Data

U.S. National Chronic Disease Self-Management Study. Study described in Ory MG, Ahn S, Jiang L, et al. National...