Table 2.

Correlations of assessment of cases with individual medication‐related factors

		Polypharmacy score	Likelihood to cause harm	Ability to simplify
Total number of medicinesa	R	0.92	0.68	0.67
	P ‐value	<0.0001	0.002	0.002
Beers criteria medicinesa	R	0.39	0.69	0.50
	P ‐value	0.11	0.001	0.03
STOPP criteria medicines	R	0.45	0.34	0.59
	P ‐value	0.06	0.17	0.01
Falls‐risk medicines	R	0.54	0.67	0.58
	P ‐value	0.02	0.002	0.01
Drug burden index	R	0.57	0.68	0.57
	P ‐value	0.01	0.002	0.01
Medicines causing postural hypotension	R	0.42	0.28	0.16
	P ‐value	0.09	0.27	0.54
Pharmacokinetic drug–drug interactions	R	0.26	0.50	0.04
	P ‐value	0.29	0.04	0.87

^aNormally distributed data were examined using Pearson's correlation coefficient, and all other variables were examined using Spearman's correlation coefficient. Values highlighted in bold are statistically significant.