Table 2.

Regression analysis of yearly trends in prescriptions and costs, 2013–2022.

Drugs	Prescription trends
	Prescriptions, mean change per year as % of baselinea (95% CI)	p
Prescription items	0.34 (−3.98, 4.67)	0.860
Net ingredient costs	−2.43 (−5.78, 0.92)	0.133

a = % change was calculated by dividing the regression coefficient by baseline prescriptions or costs from 2013 as given