Table 3.
Michigan Hand Outcome Questionnaire Data*
Domain | Preoperatively | 12 months | Intermediate-term | Effect Size† |
---|---|---|---|---|
Overall | 43 ± 12 | 63 ± 23 | 62 ± 19 | 1.2 |
Function | 54 ± 17 | 65 ± 18 | 69 ± 14 | 1.0 |
ADL | 53 ± 19 | 70 ± 25 | 70 ± 20 | 0.8 |
Work | 53 ± 24 | 66 ± 25 | 58 ± 28 | 0.2 |
Pain | 66 ± 14 | 33 ± 36 | 31 ± 25 | 1.7 |
Aesthetics | 32 ± 18 | 58 ± 27 | 44 ± 29 | 0.5 |
Satisfaction | 29 ± 13 | 51 ± 35 | 62 ± 22 | 1.8 |
ADL: activities of daily living
The Michigan Hand Outcomes Questionnaire domains are based on a scale of 0 to 100. For all domains except Pain, a higher score indicates better performance. For the Pain domain, a lower score indicates less pain.
The effect size is defined as (mean2 - mean1)/(SD of difference in means). An effect size of 0.2 is small, 0.5 is medium, and 0.8 is large.