Cardioselective β-Blockers in Patients with Reactive Airway Disease

Figure 4. Diamonds represent the extent of the confidence intervals. For group 1, test for heterogeneity, = 0.013; test for
overall effect, 0.003. For group 2, test for overall effect, 0.2. For both groups, test for heterogeneity, < 0.01; test for
overall effect, 0.01.
Effects of treatment after use of β2-agonists on FEV1 for continued treatment studies.PP =P >PP =
-
Ann Intern Med
November 5, 2002
vol. 137
no. 9
715-725