Table 3 Postoperative oximetry and use of supplemental oxygen
| Â | APAP | Routine | p |
|---|---|---|---|
Post-operative night 1 | |||
 n | 83 | 99 |  |
 CT90 (median [IQR]) | 5.1 [0.7, 27.9] | 3.3 [0.6, 18.4] | 0.336 |
 Min SpO2 (mean (SD)) | 75.4 (11.0) | 74.7 (11.2) | 0.647 |
 Average SpO2 (mean (SD)) | 92.1 (3.8) | 93.1 (3.7) | 0.070 |
 ODI (events/hr) (median [IQR]) | 17.8 [8.9, 26.5] | 13.9 [6.4, 24.6] | 0.318 |
 Supplemental oxygen (n, %) | 37 (44.6) | 49 (49.5) | 0.553 |
Post-operative night 2 | |||
 n | 69 | 91 |  |
 CT90 (median [IQR]) | 7.9 [2.0, 35.5] | 19.0 [3.0, 48.0] | 0.158 |
 Min SpO2 (mean (SD)) | 73.6 (13.3) | 72.5 (11.2) | 0.564 |
 Average SpO2 (mean (SD)) | 91.2 (5.2) | 90.5 (4.7) | 0.372 |
 ODI (events/hr) (median [IQR]) | 20.3 [9.9, 31.0] | 21.5 [14.2, 38.6] | 0.210 |
 Supplemental oxygen (n, %) | 11 (15.9) | 9 (9.9) | 0.335 |
Post-operative night 3 | |||
 n | 30 | 37 |  |
 CT90 (median [IQR]) | 13.8 [5.2, 42.8] | 21.1 [4.2, 61.7] | 0.623 |
 Min SpO2 (mean (SD)) | 76.1 (7.1) | 69.6 (11.1) | 0.008 |
 Average SpO2 (mean (SD)) | 90.5 (4.0) | 90.7 (2.9) | 0.790 |
 ODI (events/hr) (median [IQR]) | 20.7 [12.5, 40.8] | 20.8 [12.5, 42.1] | 0.703 |
 Supplemental oxygen (n, %) | 2 (6.7) | 2 (5.4) | 1.000 |