Table 1. Characteristics of the Students Participating in the Randomized School Simulation Trial by Group.
| Characteristic | No. (%) | |
|---|---|---|
| Mask class (n = 87) | Control class (n = 84) | |
| Age, median (IQR), y | 12.3 (9.1-15.2) | 12.5 (8.7-15.1) |
| Sex | ||
| Female | 43 (49.4) | 40 (47.6) |
| Male | 44 (50.6) | 44 (52.4) |
| Public school | 49 (58.3) | 51 (63.8) |
| Self-reported ethnicity | ||
| Asian | 16 (18.4) | 12 (14.3) |
| Black | 7 (8.0) | 5 (6.0) |
| White | 46 (52.9) | 40 (47.6) |
| Other/unknowna | 18 (20.7) | 27 (32.1) |
| Income, $ | ||
| ≤99 999 | 14/82 (17.1) | 11/80 (13.8) |
| 100 000-199 999 | 11/82 (13.4) | 23/80 (28.8) |
| ≥200 000 | 44/82 (53.7) | 39/80 (48.8) |
| Chose not to answer | 13/82 (15.9) | 7/80 (8.8) |
| Grade | ||
| JK/SK | 11 (12.6) | 11 (13.1) |
| 1-2 | 8 (9.2) | 9 (10.7) |
| 3-4 | 10 (11.5) | 9 (10.7) |
| 5-6 | 13 (14.9) | 12 (14.3) |
| 7-8 | 15 (17.2) | 15 (7.9) |
| 9-10 | 15 (17.2) | 14 (16.7) |
| 11-12 | 15 (17.2) | 14 (16.7) |
Abbreviations: IQR, interquartile range; JK, junior kindergarten; SK, senior kindergarten.
a
The individuals listed other without providing a written comment.