Baseline characteristics of patients with and without OSA
| All (n=1236) | No OSA (n=242) | OSA (n=994) | p Value | |
|---|---|---|---|---|
| Continuous variable* | ||||
| Age (years) | 49 (40, 55) | 44 (35, 53) | 49 (42, 56) | <0.01 |
| AHI | 15 (7, 30) | 2 (1, 4) | 20 (12, 35) | <0.01 |
| ESS | 10 (6, 14) | 11 (7, 14) | 10 (6, 14) | 0.86 |
| Time worked per week (h) | 40 (37, 50) | 40 (37, 50) | 40 (37, 50) | 0.67 |
| BMI | 30 (27, 35) | 28 (25, 33) | 31 (27, 35) | <0.01 |
| Mean claim cost | 2139 (736, 6513) | 1085 (404, 4622) | 2159 (792, 6513) | 0.21 |
| Categorical variables | ||||
| Gender (female) | 374 (30.3%) | 93 (38.4%) | 281 (28.3%) | <0.01 |
| Alcohol (yes) | 855 (69.2%) | 182 (75.2%) | 673 (67.8%) | 0.03 |
| Industry (blue-collar) | 346 (28%) | 61 (25.2%) | 285 (28.7%) | 0.28 |
| Occupational injuries | ||||
| Patients with injuries | 111 (8.98%) | 13 (5.37%) | 98 (9.86%) | 0.03 |
| Patients with vigilance related injuries | 49 (3.96%) | 4 (1.65%) | 45 (4.53%) | 0.04 |
| Patients with non-vigilance related injuries | 62 (5.02) | 9 (3.72%) | 53 (5.33%) | 0.30 |
*Values presented for continuous variables correspond to the median and IQR.
AHI, apnea-hypopnea index; BMI, body mass index; ESS, Epworth sleepiness scale; OSA, obstructive sleep apnoea.