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The Egyptian Journal of Bronchology

Table 6 Relation between Δ forced expiratory volume in first second (FEV1) and Δ forced vital capacity (FVC)

From: Diagnostic performance of lung volumes in assessment of reversibility in chronic obstructive pulmonary disease

 

Percentage of change

P value

FEV1

FVC

Response

  

< 0.001

No change

15 (5%)

9 (3%)

No significant increase

240 (80%)

126 (42%)

Significant increase

45 (15%)

165 (55%)

  1. FEV1 forced expiratory volume in first second, FVC forced vital capacity
  2. Data expressed as frequency (percentage)
  3. P value was significant if < 0.05
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