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Frequency of single touch versus multiple touches shown across subject’s oral activity, touch duration and mask wearing.
| Variable | Multitouch | No multitouch | Chi-square test | ||
|
|
|
|
Chi-square (df) | Value, n | P value |
| Oral activity (n=39) | 16 (41) | 23 (59) | 35.6 (1) | 490 | <.001 |
| Long touch duration (>1 second; n=79) | 29 (36.7) | 50 (63.3) | 57.6 (1) | 490 | <.001 |
| Wearing a mask (n=241) | 17 (7.1) | 224 (92.9) | 9.67 (1) | 490 | .002 |
