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| Total (n = 357) | String (n = 186) | Woodwind (n = 96) | Brass (n = 59) | Other (n = 16) | |
|---|---|---|---|---|---|
| One week prevalence | 26.9% | 32.8% | 21.9% | 20.3% | 12.5% |
| Four-week prevalence | 33.6% | 36.6% | 33.3% | 28.8% | 18.8% |
| Three months’ prevalence | 37.3% | 41.9% | 36.5% | 28.8% | 18.8% |
| One year prevalence | 67.8% | 74.2% | 63.5% | 57.6% | 56.2% |
