Table 4.
Comparison between high and low risk drivers that were tested with PSG versus the ones that were not yet tested with PSG.
| Parameters | High-risk Drivers (Class 1) n=5908 | Low-risk drivers (non-class 1) n= 13,463 | ||||
|---|---|---|---|---|---|---|
| Tested with PSG n=2103 | Not yet tested with PSG n=3805 | p-value | Tested with PSG n=326 | Not yet tested with PSG n=13,137 | p-value | |
| Gender (% male) | 2014 (96) | 3714 (98) | N/A | 271 (88.1) | 11,883 (90.45) | N/A |
| Age mean [±SD] | 45.3 [10] 2080 | 43.0 [10.9] 3754 | <0.001 | 41.8 [11.2] n=324 | 40.1 [11.0] n=12,960 | 0.002 |
| BMI mean [±SD] | 36.3 [6.7] 2097 | 36.4 [6.2] 3799 | 0.0669 | 31.7 [7.1] n= 324 | 28.4 [5.2] n=13,085 | 0.001 |
| Neck size mean [±SD] | 17.9 [1.6] 1502 | 18.1 [1.6] 3061 | <0.001 | 16.7 [1.3] n= 155 | 16.4 [1.2] n= 8213 | <0.001 |
| EDS n (%)* | 485 (23) | 512 (13) | <0.001 | 110 (33.7) | 705 (5.4) | <0.001 |
| Witnessed apneas n (%)* | 523 (25) | 654 (17) | <0.001 | 0 | 0 | N/A |
| Hypertension n (%)* | 936 (45) | 1563 (41) | 0.011 | 51 (15.6) | 989 (7.5) | <0.001 |
| Diabetes n (%)* | 399 (19) | 624 (16) | 0.013 | 18 (5.5) | 260 (2.0) | <0.001 |
| Heart Disease n (%)* | 115 (5) | 168 (4) | 0.075 | 9 (2.8) | 123 (0.9) | 0.005 |
| GERD n (%)* | 309 (15) | 537 (14) | 0.561 | 44 (13.5) | 854 (6.5) | <0.001 |
BMI= body mass index; EDS= excessive daytime sleepiness; GERD= gastroesophageal reflux disease; N/A= not applicable; PSG= Polysomnogram
*
Number and % of participants that answered, “yes” on the SomniSage® questionnaire