Table 1.
Demographic and polysomnographic findings among OSA children with either present (n = 12) or absent (n = 12) cognitive deficits and control children (CO; n = 6).
| Variable | CO (n = 6) |
OSA-NC(−) (n = 12) |
OSA-NC(+) (n = 12) |
|---|---|---|---|
| Age (years) | 6.3 ± 1.7 | 6.3 ± 1.6 | 6.5 ± 1.4 |
| Gender (male, %) | 50.0 | 50.0 | 50.0 |
| Ethnicity (African American, %) | 66.7 | 66.7 | 66.7 |
| BMI z-score | 1.02 ± 0.29 | 1.06 ± 0.25 | 1.04 ± 0.26 |
| Total sleep duration (min) | 473.2 ± 75.1 | 474.2 ± 66.3 | 478.8 ± 67.1 |
| REM sleep (%) | 20.2 ± 10.2 | 17.9 ± 9.5 | 18.2 ± 8.1 |
| Sleep latency (min) | 24.6 ± 15.2 | 20.7 ± 13.9 | 22.4 ± 15.6 |
| REM latency (min) | 118.7 ± 67.4 | 119.5 ± 52.4 | 117.7 ± 49.5 |
| Total Arousal Index (events/hour TST) | 12.5 ± 8.6 * | 20.9 ± 10.3 | 22.8 ± 11.4 |
| Respiratory Arousal Index (events/hour TST) | 0.4 ± 0.2 * | 8.2 ± 4.7 | 7.9 ± 4.2 |
| Obstructive Apnea Hypopnea Index (events/hour TST) | 0.5 ± 0.3 * | 19.4 ± 6.9 | 19.9 ± 7.1 |
| SpO2 Nadir (%) | 94.1 ± 1.3 * | 82.1 ± 9.0 | 80.3 ± 8.6 |
| ODI3% | 0.4 ± 0.2 * | 19.0 ± 8.4 | 18.4 ± 7.7 |
ODI3% - oxyhemoglobin desaturation index 3%; Data are expressed as mean ± SD. * p < 0.001 (OSA vs. CO).