From: Polypharmacy in the oldest old (≥80 years of age) patients in China: a cross-sectional study
Variable
OR (95% CI)
P
Age
0.36 (0.21–0.63)
< 0.001
Medication types
0.85 (0.75–0.95)
0.004
Medication knowledge
1.06 (1.02–1.10)