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Number and percentage of patients in trial by whether a TYAC form was received by age group in 2009–2010
| Age | Proportion of patients with a TYAC form who were in trial | Proportion of patients without a TYAC form who were in trial | p Value | ||||
| Proportion | Percentage | 95% CI | Proportion | Percentage | 95% CI | ||
| 15–19 | 45/57 | 78.9 | 66.7 to 87.5 | 19/30 | 63.3 | 45.5 to 78.1 | 0.117 |
| 20–24 | 16/26 | 61.5 | 42.5 to 77.6 | 8/22 | 36.4 | 19.7 to 57.0 | 0.082 |
| 15–24 | 61/83 | 73.5 | 63.1 to 81.8 | 27/52 | 51.9 | 38.7 to 64.9 | 0.011 |
