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

From: 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

  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
  1. ** p < 0.01; * p < 0.05; p < 0.1.