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Table 6 Cox regression of PPCs between two groups

From: Dexmedetomidine for prevention of postoperative pulmonary complications in patients after oral and maxillofacial surgery with fibular free flap reconstruction:a prospective, double-blind, randomized, placebo-controlled trial

Groups B SE Wald P value HR 95.0% CI
Lower Upper
Dexmedetomidine group −0.662 0.295 5.035 0.025 0.516 0.290 0.920
Placebo group reference