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Table 4 Flow volume parameters

From: Classification of chronic cough by systematic treatment cascade trial starting with beta agonist

  BA CVA NHBRC
  Before After Before After Before After
PEFR 7.51 (2.39) 7.79 (2.37)* 6.24 (1.02) 6.48 (1.27)* 7.67 (1.87) 7.72 (1.61)NS
FEFR50% 2.85 (1.71) 3.33 (1.93)* 2.81 (0.54) 3.05 (0.80)* 3.01 (0.66) 3.24 (0.64)*
FEFR25% 0.80 (0.76) 0.92 (0.77)* 0.80 (0.54) 1.04 (0.80)* 0.87 (0.46) 1.03 (0.50)*
  1. Data are means (SD). PEFR, peak expiratory flow rate; FEFR50%, forced expiratory flow rate at 50% of vital capacity; FEFR 25%, forced expiratory flow rate at 25% of vital capacity. * p < 0.05, NS, not significant.