Table 1.

Sample size simulation

“Natural” PPI deprescribing rate	PPI deprescribing rate due to intervention	Patients per cluster	Intracluster Correlation Coefficient	Power
2%	17%	45	0.05	>  0.999
2%	17%	50	0.05	>  0.999
2%	17%	45	0.1	>  0.999
2%	17%	50	0.1	>  0.999
2%	10%	45	0.05	>  0.999
2%	10%	50	0.05	>  0.999
2%	10%	45	0.1	>  0.999
2%	10%	50	0.1	>  0.999
7%	17%	45	0.05	>  0.999
7%	17%	50	0.05	>  0.999
7%	17%	45	0.1	>  0.999
7%	17%	50	0.1	>  0.999
7%	10%	45	0.05	> 0.994
7%	10%	50	0.05	> 0.990
7%	10%	45	0.1	> 0.930
7%	10%	50	0.1	> 0.908