The PearlDiver Mariners database was used to divide patients undergoing primary THA (CPT-27130) into two cohorts: 
PearlDiver Mariners database
The PearlDiver Mariners database was used to divide patients undergoing primary THA (CPT-27130) into two cohorts: 
CPT-27130
The incidence of 30-day readmission, COPD exacerbation, pneumonia, other respiratory complications as well as dislocations, mechanical loosening, and joint prosthetic infection was calculated through logistic regression. 
logistic regression
The risk of THA revision was also assessed through Cox-proportional hazards regression. 
Cox-proportional hazards regression