Table 3 Distribution of the Pittsburgh Sleep Quality Index (PSQI) and its scales in the workers under study
Questionnaires | No (%) | Mild (%) | Moderate (%) | Severe (%) |
Pittsburgh Sleep Quality Index (PSQI) | ||||
Subjective sleep quality | 19 (8.8) | 102 (47.2) | 64 (29.6) | 31(14.4) |
Sleep latency | 79 (36.6) | 98 (45.4) | 38 (17.6) | 1 (0.5) |
Sleep duration | 138 (63.9) | 58 (26.9) | 20 (9.3) | - |
Habitual sleep efficiency | 94 (43.5) | 31 (14.4) | 69 (31.9) | 22 (10.2) |
Sleep disturbances | 30 (13.9) | - | 39 (18.1) | 147(68.1) |
Use of sleeping medication | 50 (23.1) | 94 (43.5) | 44 (20.4) | 28 (12.9) |
Daytime dysfunction | 20 (9.3) | 72 (33.3) | 89 (41.2) | 35 (16.2) |
Global PSQI score | Mean | S.D* | Min | Max |
9.17 | 2.28 | 2 | 15 | |
N | % | |||
Sleep disorder | Yes (>9 score) | 169 | 78.2 | |
No (≤9 score) | 47 | 21.8 | ||
Sleep disorder in men | Yes (>9 score) | 63 | 74.1 | |
No (≤9 score) | 22 | 25.9 | ||
Sleep disorder in women | Yes (>9 score) | 106 | 80.9 | |
No (≤9 score) | 25 | 19.1 | ||