- Rheumatology
HAQ-DI score
Measuring functional disability
The HAQ-DI measures the difficulty experienced by the patient in carrying out daily activities. The 20 activities are grouped into eight functional domains. Scoring also takes into account the use of assistive devices or human assistance, making its calculation more complex than a simple average of 20 responses.
- Number of questions
- 20 activities (8 fields)
- Approximate duration
- 5 to 10 minutes
- Population
- Adults with rheumatoid arthritis or inflammatory arthritis
- Modality
- self-assessment questionnaire with information on help/support
Terms of contract
Self-administered questionnaire completed by the patient on their usual abilities over the past week. Assistive devices and help from another person must be reported, as they increase the score in the relevant areas. The score is only calculated if at least 6 of the 8 areas are completed; use the official licensed French form.
Score interpretationHAQ-DI
For each domain, the highest activity score is used (adjusted to at least 2 if technical or human assistance is required, according to the official rules); the HAQ-DI is the average of the valid domain scores, ranging from 0 to 3.
Total score
First reading
The higher the HAQ-DI, the greater the reported functional limitation; continuous measure, with no proposed severity threshold.
It measures perceived function, which can be influenced by multiple conditions and the patient's environment.
Frequently asked questions
Sources and references
Stanford University / J. F. Fries
Fries JF et al., J Rheumatol, 1980
Questionnaires and associated scores
Integrate questionnaires into your practice
One-off collection or questionnaire integrated into a journey: let's discuss your needs with Aldebaran.