Table 2 Voice demand during work among the study subjects
From: The effect of wearing face masks on voice and intelligibility of speech during the COVID-19 pandemic
| Â | Â | Frequency | Percent |
|---|---|---|---|
Voice demand during work (percentage of voice use per working hours) | 0–25% | 4 | 2.6 |
25–50% | 29 | 19 | |
50–75% | 61 | 39.8 | |
75–100% | 59 | 38.6 |