Empowerment and enablement and their associations with change in health-related quality of life after a supported osteoarthritis self-management programme - a prospective observational study.

There was no control group, so the study cannot show that the self-management programme caused any change in quality of life. The programme combined education, exercise, coping strategies and weight-loss advice if needed, so the contribution of any single component cannot be separated. Only 119 of the 143 patients who answered baseline questionnaires had paired baseline and nine-month quality-of-life data, so the analysis excludes those with missing follow-up. Patients reported relatively high quality of life at baseline, which may leave little room for further improvement and may make change over time partly due to regression to the mean. The sample was Swedish-speaking and came from two regions in Sweden, so it may not represent broader osteoarthritis populations. Enablement was measured only at three months with no baseline value, so change in enablement could not be calculated and recall bias may affect the score. The study did not collect information about osteoarthritis severity or radiographic classification, and it did not know why some patients did not participate. The study was registered retrospectively, and the timing of measurements may matter because it is not known how long changes in quality of life, empowerment or enablement last.

Do not conclude that the self-management programme caused quality-of-life improvement or that empowerment and enablement scores should be used to choose treatment. The study had no control group, the programme combined several components, and the main unadjusted associations were null.