Baseline Characteristics:
A total of 28,819 patients met our inclusion criteria and were included in our study. Among them 11,946 (41.5%) were women and 16,873 (58.6%) were men. The mean age of overall population was 76.1 ± 8.5 years, with women slightly older than men (women:76.6 ± 8.2 yrs vs. men:75.8 ± 8.7 years; p<0.001). Most patients were covered by Medicare, followed by private payer coverage. Women had a higher prevalence of anemia (p<0.001), chronic lung disease (p<0.001), history of stroke (p=0.005), obesity (p=0.005), and valvular heart disease (p=0.033). Whereas men had a high proportion of Diabetes (p<0.001), coronary artery disease (p<0.001), peripheral arterial disease (p<0.001), and its related complications. (Table 1).