Table 3

Logistic regression models of postoperative outcomes by OSA status for the dataset excluding patients with missing data

OSA status
Yes (reference=no)P value
OR (95% CI)
Cardiac complications1.16 (0.85 to 1.55)>0.999
Pulmonary complications2.16 (1.69 to 2.73)<0.007
Gastrointestinal complications1.72 (1.19 to 2.42)0.021
Renal/genitourinary complications1.14 (0.86 to 1.49)>0.999
Thromboembolic complications1.11 (0.64 to 1.82)>0.999
Delirium1.46 (1.07 to 1.95)0.091
Prolonged LOS1.57 (1.41 to 1.76)<0.007
  • Model adjusted for type of surgery (TKA or THA), age at surgery (in years), time period in which the surgery occurred (categorized every 2 years from 2005 to 2014), sex (male or female), baseline laboratory values (hemoglobin, creatinine, INR, and platelets), primary type of anesthesia (neuraxial or general), dichotomized perioperative medications (benzodiazepines and ketamine), and ASA status (dichotomized as ASA status I–II or III–IV).

  • ASA, American Society of Anesthesiologists; INR, International normalized ratio; LOS, Length of stay; OSA, Obstructive sleep apnea; THA, Total hip arthroplasty; TKA, Total knee arthroplasty.