Table 2.
Cognitive performance of children without (−Mask) and with a mask (+Mask).
| −Mask | +Mask | p | p * | |
|---|---|---|---|---|
| Switch Task | n = 62 | n = 62 | ||
| Switch costs (s) | 27.2 ± 18.1 | 28.6 ± 18.2 | 0.68 | 1.00 |
| Visual search letters (s) # | 34.8 (30.0–42.3) | 36.7 (31.6–43.5) | 0.25 | 1.00 |
| Visual search numbers (s) | 50.1 (43.6–58.9) | 49.5 (43.7–58.4) | 0.68 | 1.00 |
| 2-Back Task | n = 68 | n = 65 | ||
| RT (ms) | 512 ± 108 | 534 ± 88.7 | 0.18 | 1.00 |
| Ratio of missings (%) | 31.0 (20.2–42.9) | 38.1 (26.2–52.4) | 0.03 | 0.36 |
| Ratio of false alarms (%) | 8.24 (4.71–12.9) | 9.41 (5.88–21.2) | 0.29 | 1.00 |
| Corsi Block-Tapping Task | n = 68 | n = 64 | ||
| Immediate block span (n) | 5.00 (5.00–6.00) | 5.00 (5.00–6.00) | 0.87 | 1.00 |
| Correct sequences (n) | 7.00 (5.00–8.00) | 7.00 (5.00–8.00) | 0.73 | 1.00 |
| Score | 12.0 (9.00–17.0) | 12.5 (9.00–17.8) | 0.84 | 1.00 |
| Flanker Task | n = 60 | n = 49 | ||
| RT slowing (ms) | 75.2 ± 33.9 | 74.6 ± 43.8 | 0.93 | 1.00 |
| Difference error rate (%) | 19.4 (10.1–50.1) | 35.5 (14.2–73.4) | 0.12 | 1.00 |
| Count of false alarms (n) | 3.00 (1.00–8.75) | 7.00 (3.50–18.0) | 0.006 | 0.07 |
Normally distributed data are presented as mean ± standard deviation, non-normally distributed are displayed as median (25th–75th percentile); # first twelve reactions; n, number; ms, milliseconds; RT, reaction time; s, second; * Bonferroni-corrected. Ranges (min–max) of cognitive performance of children without (−Mask) and with a mask (+Mask) as well as reference values of the tests are shown in the supplement.