2.2 Occurrence of PIM
Among them, 233 (62.63%) patients used the drugs in the China-PIM list for the old adults. The top three drugs with higher incidence were spironolactone (15.21%), clopidogrel (11.22%) and insulin (11.22%). Among them, 219 (54.29%) cases used A-level warning drugs, but did not use high-risk-intensity drugs; 182 (45.71%) cases used B-level warning drugs, and 93 (23.19%) cases used drugs of high risk intensity. See Table 2 for details. Among them, 64 (17.20%) patients have 90 PIMs related to the disease state, all of which are A-level warning drugs. The highest incidence took place when taking clopidogrel or non-steroidal anti-inflammatory drugs during coagulation disorders or anticoagulation theatment. See Table 3 for details.