Table 4 Cognitive performance: results of math and spelling tests before and after the 4-h workplace examination in 39 subjects without mask (NM) and with three different mask types.
From: Influence of face masks on the subjective impairment at different physical workloads
Mask type | Math test before | Math test after | Spelling test before | Spelling test after |
|---|---|---|---|---|
Correct answers, n (%) | ||||
NM | 2683 (74%) | 2851 (79%) | 3046 (82%) | 2835 (80%) |
SM | 2520 (69%) | 2623 (72%) | 2914 (80%) | 2925 (81%) |
CM | 2589 (71%) | 2729 (75%) | 2913 (80%) | 2923 (81%) |
FFP2 | 2525 (70%) | 2723 (75%) | 2933 (81%) | 2907 (80%) |
False answers, n (%) | ||||
NM | 735 (20%) | 622 (17%) | 646 (18%) | 675 (19%) |
SM | 855 (24%) | 804 (22%) | 662 (18%) | 677 (19%) |
CM | 784 (22%) | 705 (19%) | 674 (19%) | 684 (19%) |
FFP2 | 792 (22%) | 735 (20%) | 653 (18%) | 695 (19%) |
Omissions, n (%) | ||||
NM | 209 (6%) | 154 (4%) | 28 (1%) | 24 (1%) |
SM | 252 (7%) | 200 (6%) | 51 (1%) | 25 (1%) |
CM | 254 (7%) | 193 (5%) | 40 (1%) | 20 (1%) |
FFP2 | 310 (9%) | 169 (5%) | 41 (1%) | 25 (1%) |
Response time for correct answers [ms], mean ± SD | ||||
NM | 4510 ± 1339 | 4327 ± 1356 | 3833 ± 1233 | 3745 ± 1243 |
SM | 4603 ± 1361 | 4483 ± 1372 | 3898 ± 1268 | 3765 ± 1260 |
CM | 4532 ± 1394 | 4371 ± 1432 | 3855 ± 1239 | 3711 ± 1239 |
FFP2 | 4514 ± 1408 | 4320 ± 1401 | 3796 ± 1258 | 3662 ± 1231 |
Response time for false answers [ms], mean ± SD | ||||
NM | 5427 ± 1238 | 5251 ± 1277 | 4345 ± 1359 | 4253 ± 1355 |
SM | 5453 ± 1240 | 5229 ± 1379 | 4529 ± 1348 | 4301 ± 1427 |
CM | 5294 ± 1377 | 5088 ± 1449 | 4314 ± 1354 | 4258 ± 1384 |
FFP2 | 5278 ± 1501 | 5087 ± 1510 | 4382 ± 1326 | 4209 ± 1343 |
