Table 4. Clinical and Preoperative CRSS Data of Children in Group INT^major

CRSS = cardiorespiratory sleep study; M = male; F = female; OAH index =#apnea&hypopnea · hr⁻¹; Sao²nadir = lowest O²saturation achieved. O²Rx = oxygen administration; IPPV = intermittent positive pressure ventilation; CPAP = continuous positive airway pressure; ICU planned = elective post-op admission to ICU. ICU = intensive care unit. See text for details of perioperative course.