Figure 4.
Comparison of AHI and percentage TST end-tidal carbon dioxide > 50 mmHg before and after adenotonsillectomy. A total of 267 children had baseline and endpoint polysomnogram data available (n = 136 eAT group; n = 131 WWSC group). AHI, apnea hypopnea index; eAT, early adenotonsillectomy; TST, total sleep time; WWSC, watchful waiting with supportive care.