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Comparison regarding outdoor activity (ODA).
| ODA level | SVCF patients* (n=102) | Non-SVCF (n=548) |
|---|---|---|
| High | 15 | 133 |
| Modetare | 23 | 280 |
| Low | 64 | 135 |
P<0.001, compared with non-SVCF group, by chi-squared test.
SVCF – secondary vertebral compression fracture; low level, ODA <0.5 hour/day; medium level, 0.5≤ ODA <2 hour/day; high level, ODA ≥2 hour/day.
