在过去的两周里，您感觉自己被以下症状所困扰的频率是？
| 在过去的两周里，您 | 完全没有 | 有过几天（≤7） | 超过一半天数（＞7） | 几乎每天 |
| PHQ1.我做事情缺乏兴趣和乐趣 | 0 | 1 | 2 | 3 |
| PHQ2.我情绪低落、抑郁或无望 | 0 | 1 | 2 | 3 |
| GAD1.感到不安、担心及烦躁 | 0 | 1 | 2 | 3 |
| GAD2.不能停止或无法控制担心 | 0 | 1 | 2 | 3 |
PHQ-2 and GAD-2 Severity. These consist of the first two items of the PHQ-9 and GAD-7 respectively, and constitute the two core DSM-IV items for major depressive disorder and generalized anxiety disorder, respectively. Each ranges from a score of 0 to 6.
The operating characteristics of these ultra-brief measures are quite good; the recommended cutpoints for each when used as screeners is a score of 3 or greater.
When used together, they are referred to as the PHQ-4 a 4-item screening measure which ranges from a score of 0 to 12, and serves
as a good measure of ―caseness (i.e., the higher the score, the more likely there is an underlying depressive or anxiety disorder). In particular, the PHQ-2 and GAD-2 subscores of the PHQ-4 provide separate depressive and anxiety scores, and can be used as screeners for depression and anxiety.
https://phqscreeners.pfizer.edru … 12/instructions.pdf
文献
An ultra-brief screening scale for anxiety and depression: the PHQ-4.
https://www.ncbi.nlm.nih.gov/pubmed/19996233
Data were analyzed from 2,149 patients drawn from 15 primary-care clinics in the United States.
A 4-item measure of depression and anxiety: validation and standardization of the Patient Health Questionnaire-4 (PHQ-4) in the general population.
https://www.ncbi.nlm.nih.gov/pubmed/19616305
Given that PHQ-4, PHQ-2, and GAD-2 have not been validated in the general population, this study aimed to investigate their reliability and validity in a large general population sample and to generate normative data.A nationally representative face-to-face household survey was conducted in Germany in 2006. Of the 5030 participants (response rate=72.9%), 53.6% were female and mean (SD) age was 48.4 (18.0) years.
Standardization of the Colombian version of the PHQ-4 in the general population.
https://www.ncbi.nlm.nih.gov/pubmed/25037706
The Psychometric Properties of PHQ-4 Depression and Anxiety Screening Scale Among College Students
https://www.sciencedirect.com/sc … i/S0883941716000352
PHQ-9 and PHQ-2 for Screening Depression in Chinese Rural Elderly
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4792401/