Table 2.
Percentage of students with clinically significant improvement in quality of life (>0.5 units) in control and intervention groups. Values are numbers (percentages) unless stated otherwise
| Domain | Control group (n=138) | Intervention group (n=113) | % difference (95% CI) | P value | Number needed to treat |
|---|---|---|---|---|---|
| Mean total quality of life: | 17/138 (12) | 28/113 (25) | 12.5 (2.8 to 22.1) | 0.01 | 8 |
| Year 7 | 14/71 (20) | 16/47 (34) | 14.3 (−2.1 to 30.7) | 0.08 | 7 |
| Year 10 | 3/67 (5) | 12/66 (18) | 13.7 (3.2 to 24.2) | 0.01 | 7 |
| Male | 11/75 (15) | 9/39 (23) | 8.4 (−7.1 to 23.9) | 0.26 | 12 |
| Female | 6/63 (10) | 19/74 (26) | 16.2 (3.8 to 28.5) | 0.02 | 6 |
| Activities: | 38/138 (28) | 46/113 (41) | 13.2 (1.4 to 24.9) | 0.028 | 8 |
| Year 7 | 21/71 (30) | 26/47 (55) | 25.7 (8.0 to 43.5) | 0.005 | 4 |
| Year 10 | 17/67 (25) | 20/66 (30) | 4.9 (−10.3 to 20.1) | 0.53 | 20 |
| Male | 23/75 (31) | 17/39 (44) | 12.9 (−5.8 to 31.7) | 0.17 | 8 |
| Female | 15/63 (24) | 29/74 (39) | 15.4 (0.1 to 30.7) | 0.06 | 7 |
| Symptoms: | 25/138 (18) | 29/113 (26) | 7.6 (−2.8 to 17.9) | 0.15 | 13 |
| Year 7 | 14/71 (20) | 14/47 (30) | 10.1 (−6.0 to 26.1) | 0.21 | 10 |
| Year 10 | 11/67 (16) | 15/66 (23) | 6.3 (−7.1 to 19.8) | 0.36 | 16 |
| Males | 17/75 (23) | 13/39 (33) | 10.7 (−6.9 to 28.2) | 0.22 | 9 |
| Females | 8/63 (13) | 16/74 (22) | 8.9 (−3.5 to 21.4) | 0.17 | 11 |
| Emotions: | 27/138 (20) | 31/113 (27) | 7.8 (−2.7 to 18.4) | 0.14 | 13 |
| Year 7 | 16/71 (23) | 14/47 (30) | 7.3 (−9.0 to 23.5) | 0.38 | 14 |
| Year 10 | 11/67 (16) | 17/66 (26) | 9.3 (−4.4 to 23.1) | 0.19 | 11 |
| Male | 14/75 (19) | 15/39 (39) | 19.8 (2.2 to 37.4) | 0.02 | 5 |
| Female | 13/63 (21) | 16/74 (22) | 1.0 (−12.7 to 14.7) | 0.89 | 100 |