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The cumulative time of public square dancing of the intervention group.
| Period | Cumulative time of public square dancing during three months (h) | n (%) |
|---|---|---|
| Intervention period (n = 32) | 29–35 | 29(90.6) |
| 36–48 | 3(9.4) | |
| Follow-up period (n = 31) | <12 | 7(22.6) |
| 12–28 | 14(45.2) | |
| 29–36 | 10(32.3) |
