Factors associated with PIM
PIM related factors were also investigated. Comparing patients with PIM and without PIM, we did not discover a statistically significant difference in neither gender (46.5% in women vs 53.5%in men) nor age (73.5±7.3 years in patients with PIM vs 72.6 ±6.7 in patients without PIM, P>0.05 for both). However, we found via logistic regression that PIM was associated with age (≥80 years old), number of conditions (≥5), number of prescribed medications (≥10), and hospital tier. Factors associated with PIMs were showed in Table 2.