TABLE 2 ] .
LRP, HRP, and PSG Findings Among 50 Children Referred for Evaluation of OSAS
| Findings | PSG | HRP | LRP | Difference of Means |
| General Linear Model, P Value | ||||
| No. respiratory events | 101.0 ± 114.7 | 126.6 ± 110.9 | 151.8 ± 140.1 | .038 |
| Obstructive apneas | 37.3 ± 59.7 | 48.0 ± 56.4 | 56.1 ± 79.1 | .235 |
| Central apneas | 6.9 ± 8.1 | 10.1 ± 10.2 | 8.4 ± 7.4 | .069 |
| Mixed apneas | 0.3 ± 1.1 | 0.1 ± 0.7 | 0.1 ± 0.2 | .709 |
| Hypopneas | 34.6 ± 44.5 | 23.5 ± 37.5 | 25.3 ± 39.8 | .744 |
| Flow limitation events | 22.2 ± 23.5 | 45.1 ± 34.3 | 60.9 ± 56.3 | .021 |
| RDI | 13.9 ± 16.6 | 14.5 ± 13.2 | 16.5 ± 15.3 | .003 |
| ORDI | 13.0 ± 16.1 | 13.3 ± 13.0 | 15.5 ± 15.2 | .002 |
| OAHI | 9.9 ± 13.8 | 8.4 ± 10.3 | 9.2 ± 11.0 | .337 |
| Spo2 nadir, % | 87.4 ± 5.7 | 89.3 ± 4.1 | 87.5 ± 4.3 | .023 |
| Spo2 mean, % | 96.5 ± 1.5 | 96.9 ± 1.3 | 96.5 ± 1.0 | .018 |
| CT90% | 0.9 ± 2.9 | 0.7 ± 1.9 | 0.8 ± 2.0 | .616 |
| Oxygen desaturation index | 4.0 ± 5.8 | 4.1 ± 5.4 | 4.0 ± 5.6 | .967 |
| Peak CO2, mm Hg | 47.9 ± 7.2 | … | … | … |
| Ptcco2 > 50 mm Hg, % | 10.9 ± 23.3 | … | … | … |
Data are shown as mean ± SD. CT90% = cumulative percentage of sleep time with oxygen saturation as measured by pulse oximetry < 90%; OAHI = obstructive apnea-hypopnea index; ORDI = obstructive respiratory disturbance index; Ptcco2 = transcutaneous CO2; RDI = respiratory disturbance index; Spo2 = oxygen saturation as measured by pulse oximetry. See Table 1 legend for expansion of other abbreviations.