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Table 1
Demographics of the study population by history OSA.
| Demographic | No History of OSA (n = 1098) | OSA (n = 93) |
P Value |
| Age, y, mean ± SEM | 58.8 ± 0.4 | 53.6 ± 1.2 | 0.4252 |
| Sex, n (%) | | | 0.1218 |
 Male | 654 (59.6) | 63 (67.7) | |
| Female | 444 (40.4) | 30 (32.3) | |
| Obesity, n (%) | | | <0.0001
a
|
| BMI <30 | 1011 (92.1) | 50 (53.8) | |
| BMI 30–40 | 65 (5.9) | 23 (24.7) | |
| BMI >40 | 22 (2.0) | 20 (21.5) | |
| ASA status, n (%) | | | <0.0001
a
|
| I | 29 (2.6) | 0 (0.0) | |
| II | 512 (46.6) | 16 (17.2) | |
| III | 505 (46.0) | 70 (75.3) | |
| IV | 50 (4.6) | 7 (7.5) | |
| ASA status (reference: <2), n (%) | | | |
| >2 | 556 (50.6) | 77 (82.8) | <0.0001
a
|
| Admission type, n (%) | | | 0.1261 |
| Elective | 1071 (97.5) | 93 (100.0) | |
| Nonelective | 27 (2.5) | 0 (0.0) | |
| Segments operated, mean ± SEM | 3.9 ± 0.06 | 4.2 ± 0.21 | 0.1066 |
| Length of surgery, min, mean ± SEM | 156.4 ± 13.7 | 164.6 ± 15.9 | 0.8624 |
| Awake intubation, n (%) | 61 (5.6) | 9 (12.9) | 0.1047 |
| Elixhauser Comorbidity Index, n (%) | | | 0.7373 |
| <0 | 138 (12.6) | 15 (16.1) | |
| 0 | 761 (69.3) | 62 (66.7) | |
| 1–4 | 63 (5.7) | 4 (4.3) | |
| >4 | 136 (12.4) | 12 (12.9) | |