{
  "@type": "PropertyValue",
  "name": "hads_d",
  "description": "HADS depression subscale: sum of the 7 depression items",
  "valueType": "int",
  "subscale": "depression",
  "minValue": 0,
  "maxValue": 21,
  "var": ["hads_02", "hads_04", "hads_06", "hads_08", "hads_10",  "hads_12", "hads_14"]
}