The influences of Taiwan's generic grouping price policy on drug prices and expenditures: Evidence from analysing the consumption of the three most-used classes of cardiovascular drugs

Table 5 Difference in the total expenditure on drugs between the pre- and the post-action periods

	Exposure group		Comparison group
	Coefficient	95% CI of change measured in %	Coefficient	95% CI of change measured in %
Beta blocking agents
Post_Action	0.39**	(38, 58)	0.65**	(78, 106)
Test Statistic		F (1,552) = 131.54**		F (1,510) = 316.63**
# observations		1106		1022
# patient-hospital groups		553		511
Calcium channel blockers, vascular effects
Post_Action	0.47**	(50, 69)	0.65**	(80, 105)
Test Statistic		F (1,634) = 237.32**		F (1,566) = 371.13**
# observations		1270		1134
# patient-hospital groups		635		567
ACE inhibitors, plain
Post_Action	0.44**	(42, 70)	0.49**	(51, 78)
Test Statistic		F (1,271) = 95.05**		F (1,287) = 139.76**
# observations		544		576
# patient-hospital groups		272		288

ISSN: 1471-2458