Table 1. Kidscreen-52 Dimension T Scores by Treatment Group .
| Kidscreen-52 Dimensionsa | Caffeineb | Placebob | Unadjusted Mean Difference (95% CI) | Mean Difference Adjusted for Center (95% CI) | P Value | ||
|---|---|---|---|---|---|---|---|
| No. of Patients | T Score, Mean (SD) | No. of Patients | T Score, Mean (SD) | ||||
| Physical well-being | 402 | 49.7 (8.5) | 411 | 50.4 (9.0) | −0.7 (−1.9 to 0.5) | −0.7 (−1.9 to 0.5) | .24 |
| Psychological well-being | 403 | 52.1 (9.2) | 412 | 52.9 (8.9) | −0.8 (−2.0 to 0.4) | −0.8 (−2.1 to 0.4) | .17 |
| Moods and emotions | 404 | 51.6 (9.5) | 412 | 52.2 (10.3) | −0.5 (−1.9 to 0.8) | −0.5 (−1.8 to 0.8) | .46 |
| Self-perception | 404 | 55.3 (10.4) | 412 | 56.3 (9.9) | −1.1 (−2.5 to 0.3) | −1.1 (−2.4 to 0.3) | .13 |
| Autonomy | 405 | 50.2 (9.6) | 410 | 50.6 (9.8) | −0.4 (−1.8 to 0.9) | −0.5 (−1.7 to 0.8) | .49 |
| Parent relations and home life | 403 | 52.0 (9.7) | 409 | 53.2 (9.3) | −1.2 (−2.5 to 0.1) | −1.2 (−2.4 to 0.1) | .07 |
| Financial resources | 396 | 46.2 (10.1) | 397 | 47.3 (10.1) | −1.1 (−2.5 to 0.3) | −1.1 (−2.5 to 0.2) | .11 |
| Social support and peers | 400 | 50.8 (11.2) | 409 | 52.6 (10.7) | −1.9 (−3.4 to −0.3) | −1.9 (−3.3 to −0.4) | .01 |
| School environment | 400 | 55.6 (10.7) | 408 | 56.8 (11.4) | −1.2 (−2.8 to 0.3) | −1.2 (−2.7 to 0.3) | .11 |
| Social acceptance (bullying) | 403 | 47.3 (11.0) | 407 | 47.3 (11.6) | 0.0 (−1.6 to 1.5) | −0.1 (−1.6 to 1.5) | .95 |
a
The Kidscreen-52 contains 52 items with a minimum of 3 and a maximum of 7 items per dimension. The mean (SD) dimension T score is 50 (10) in the European reference populations.4 Higher T scores indicate better quality of life.
b
These data are for the 817 children with at least one Kidscreen-52 T score in each of the treatment groups.