Table 2.
Patient characteristics.
| Baseline (n=343) | tPSG (n=343) | HSAT Subgroup Baseline (n=110) | HSAT (n=110) | |
|---|---|---|---|---|
|
| ||||
| Age at surgery, years | 60.4 ± 11.0 | 59.3 ± 10.4 | ||
|
| ||||
| Male gender | 258 (76.1%) | 91 (82.7%) | ||
|
| ||||
| BMI, kg/m2 | 29.2 ± 3.6 | 28.5 ± 3.6* | 29.6 ± 3.5 | 28.4 ± 3.6* |
|
| ||||
| AHI | 35.6 ± 15.2 | 11.0 ± 14.1* | 35.6 ± 14.3 | 15.9 ± 16.0* |
|
| ||||
| OSA severity | ||||
| None (AHI <5) | 0 (0%) | 146 (42.6%) | 0 (0%) | 30 (27.3%) |
| Mild (AHI 5- <15) | 7 (2.0%) | 112 (32.7%) | 0 (0%) | 41 (37.3%) |
| Moderate (AHI 15- <30) | 134 (39.1%) | 61 (17.8%) | 43 (39.1%) | 22 (20.0%) |
| Severe (>30) | 202 (58.9%) | 24 (7.0%) | 67 (60.9%) | 17 (15.5%) |
|
| ||||
| Response rate 15 (≥50% decrease in the AHI to <15 events/hour) | 249 (72.6%) | 63 (57.3%) | ||
|
| ||||
| Response rate 5 (≥50% decrease in the AHI to <5 events/hour) | 151 (44.0%) | 30 (27.3%) | ||
SD = standard deviation, tPSG = titration in lab polysomnogram, eHSAT = efficacy home sleep apnea test, BMI = body mass index, AHI = apnea hypopnea index, OSA = obstructive sleep apnea.
*
p < 0.05, comparing preoperative to postoperative values