The results of the multiple logistic regression showed that risk of hospital LOS > 6 days in unsuccessful percutaneous coronary intervention (PCI) was 33.2 versus 66.8 in successful PCI (P = 0/001). ...the risk of hospital LOS > 6 days in subjects who had post-procedure complication, problems at admission, and primary comorbidities was 9.13 (7.22-11.53)-fold, 4.09 (2.86-5.85)-fold, and 1.75 (1.35-2.27)-fold more than those who had not, respectively CONCLUSION: Reduction in the number of inpatient days increases hospital profit with more efficient bed management. ...determination of die factors associated widi reducing hospitalization period is vital. ...by controlling the factors associated with the long-term admission of patients after PPCI, the length of hospitalization and subsequently contributing costs, manpower, and time in the health care system can be reduced. According to the age group classification, 25.7% of subjects (n = 144) were in the group of less than 50 years old, and 29.1% (n = 163), 28.5% (n = 160), and 16.8% (n = 94) of subjects were in the age groups of 51 to 60, 61 to 70, and above 70 years, respectively. 74.2% (n = 416) of subjects were men and 25.8% (n = 145) were women.