Social Determinants of Preoperative Polysomnography and Surgical Outcomes in Pediatric Tonsillectomy.

Obesity was also strongly associated with preoperative polysomnography (aOR, 2.49; 95% CI, 1.77-3.51), second only to medical complexity.

The association for Hispanic ethnicity attenuated by approximately 80% in sequential models.

In doubly robust models, preoperative polysomnography was associated with higher complication odds (aOR, 2.07; 95% CI, 1.09-3.93), consistent with confounding by indication rather than a causal effect of testing.