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Comparison of OSI at baseline and 12-week follow-up among the two groups (mean ± standard deviations).
| Outcome variable | Tai Chi group (n = 27) | Control group (n = 29) |
|---|---|---|
| Baseline | 4.65 ± 0.42 | 4.80 ± 0.29 |
| 12-week | 4.76 ± 0.35 | 4.00 ± 0.24ab |
aDenotes a difference significant at p < 0.05 when compared with pretest values; bdenotes a difference significant at p < 0.05 when compared with the control group.
