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Degree of fatigue by the monitor and the awareness of image quality management
| Degree of fatigue | Very tired | Tired | Fair | Cannot feel |
| Total (%) | 1 (4.0) | 14 (56.0) | 8 (32.0) | 2 (8.2) |
| Awareness | Well aware of | Aware of | Fair | Not aware of |
| Total (%) | 1 (4.0) | 10 (40.0) | 8 (32.0) | 6 (24.0) |
Interaction effect using frequency analysis model and crosstabs model. Unit is number and percentage
