Table 1

Different versions of the Health Assessment Questionnaire (HAQ) in the Netherlands

Categories Items Aid/devices
Siegert (1984)824No
Van der Heijde (1990, HAQ90)923No1-150
New version (1999, HAQ99)820Yes
  • The original Stanford HAQ contains 20 items in eight categories and includes a section to correct for the use of aid/devices.

  • 1-150 No section on aid/devices but to each of the 23 items an option was added for this purpose.