{
  "id": "phq-2",
  "name": "Patient Health Questionnaire-2",
  "short_name": "PHQ-2",
  "description": "A 2-item ultra-brief depression screening tool consisting of the first two items of the PHQ-9. Assesses anhedonia and depressed mood, the cardinal symptoms of depression.",
  "url": "https://www.phqscreeners.com/select-screener",
  "reference": "Kroenke, K., Spitzer, R. L., & Williams, J. B. (2003). The Patient Health Questionnaire-2: Validity of a two-item depression screener. Medical Care, 41(11), 1284-1292.",
  "reference_url": "https://doi.org/10.1097/01.MLR.0000093487.78664.3C",
  "items_count": 2,
  "domains": ["mental_health", "depression"],
  "scoring": {
    "method": "sum",
    "range": [0, 6],
    "interpretation": {
      "0-2": "Negative screen",
      "3-6": "Positive screen (consider PHQ-9)"
    }
  },
  "instructions": "Over the last 2 weeks, how often have you been bothered by the following problems?",
  "questions": [
    {
      "name": "phq2_1",
      "description": "Little interest or pleasure in doing things",
      "annotation_type": "radio",
      "labels": [
        {"name": "not_at_all", "label": "Not at all"},
        {"name": "several_days", "label": "Several days"},
        {"name": "more_than_half", "label": "More than half the days"},
        {"name": "nearly_every_day", "label": "Nearly every day"}
      ],
      "label_requirement": {"required": true}
    },
    {
      "name": "phq2_2",
      "description": "Feeling down, depressed, or hopeless",
      "annotation_type": "radio",
      "labels": [
        {"name": "not_at_all", "label": "Not at all"},
        {"name": "several_days", "label": "Several days"},
        {"name": "more_than_half", "label": "More than half the days"},
        {"name": "nearly_every_day", "label": "Nearly every day"}
      ],
      "label_requirement": {"required": true}
    }
  ]
}