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Table 3 Differences between treatments (ratio for FEV1 and FVC, absolute values for other variables) for spirometric and other parameters

From: Efficacy and safety of inhaled formoterol 4.5 and 9 μg twice daily in Japanese and European COPD patients: Phase III study results

Variable

9 μg vs. Placebo (p-value)

4.5 μg vs. Placebo (p-value)

9 μg vs. 4.5 μg

(p-value)

60-min post-dose FEV1, L

1.11 (< 0.001)

1.11 (< 0.001)

1.01 (0.643)

Pre-dose FEV1, L

1.04 (0.002)

1.04 (0.002)

1.00 (0.955)

5-min post-dose FEV1, L

1.09 (< 0.001)

1.09 (< 0.001)

1.00 (0.984)

60-min post-dose FVC, L

1.07 (< 0.001)

1.07 (< 0.001)

0.99 (0.642)

Pre-dose FVC, L

1.02 (0.135)

1.03 (0.026)

0.99 (0.483)

5-min post-dose FVC, L

1.07 (< 0.001)

1.07 (< 0.001)

1.00 (0.982)

Morning PEF, L/min

15.30 (< 0.001)

12.86 (< 0.001)

2.45 (0.360)

Evening PEF, L/min

13.78 (< 0.001)

10.85 (< 0.001)

2.93 (0.260)

Night-time awakening, score/day

-0.09 (0.038)

-0.10 (0.020)

0.01 (0.816)

Breathlessness, score/day

-0.17 (0.002)

-0.18 (0.001)

0.01 (0.822)

Cough, score/day

-0.13 (0.013)

-0.12 (0.023)

-0.01 (0.809)

Total symptom score

-0.41 (0.001)

-0.62 (0.001)

-0.25 (0.883)

Use of salbutamol, inhalations/day

-0.55 (< 0.001)

-0.27 (0.027)

-0.27 (0.029)

SGRQ total score

-4.45 (0.001)

-3.74 (0.001)

-0.71 (0.553)