Document Classification

Section Type: RESULTS

Text: The changes in spirometric parameters were significantly greater in tiotropium - than in oxitropium-treated patients : mean forced expiratory volume in 1s (FEV (1)) increased significantly by 15 % vs. 3 % (P = 0. 017), mean FVC by 10. 5 % vs. 2. 2 % (P = 0. 044), and FEF 25, 50, and 75 by 34 % vs. 14 % (P < 0. 05), 33 % vs. 7 % (P < 0. 05), and 50 % vs. 6 % (P < 0. 0001), respectively ; mean FRC and RV decreased nonsignificantly by 7. 5 % and 10 % with tiotropium vs. 4. 3 % and 6. 5 % with oxitropium, respectively.