Table 1. Demographic data of the DISE and control groups.
| DISE group (n = 126) |
Control group (n = 200) |
P | |
|---|---|---|---|
| Gender, Female, n (%) | 42/126 (33.3%) | 87/200 (43.5%) | 0.068 |
| Age, years, mean (aSD) | 5.7 (3.2) | 7.3 (3.7) | 0.812 |
| Body mass index, kg/m2, mean (SD) | 15.7 (5.5) | 17.2 (4.4) | 0.523 |
| Tonsil size, grade 1/grade 2, n (%), oropharyngeal examination | 70/56 (55.6/44.4) | 92/108 (46.0/54.0) | 0.093 |
| Adenoid, grades C/D | 67/59 | 117/83 | 0.35 |
| bRDI events/hour, preoperative (SD) | 13.7 (8.5) | 11.3 (5.1) | 0.52 |
| RDI events/hour, 6 month after surgery(SD) | 2.9 (1.4) | 3.5 (2.3) | 0.47 |
| RDI events/hour, 1 year after surgery(SD) | 4.2 (3.7) | 5.7 (3.4) | 0.04 |
| oxygen saturation nadir %, preoperative(SD) | 84.5 (11.5) | 83.2 (9.6) | 0.33 |
| oxygen saturation nadir %, 6 month after surgery(SD) | 94.3 (6.3) | 95.8 (3.9) | 0.36 |
| oxygen saturation nadir %, 1 year after surgery (SD) | 92.5 (6.6) | 89.1 (7.1) | 0.25 |
aSD = standard deviation
bRDI = respiratory disturbance index.