Table 4

Changes in respiratory indices at PCW and at PC₂₀-FEV₁. The results are expressed as mean ± SD. (n = 35/36, as one child did not respond to MCH and his spirometry did not change throughout the test).

Parameter

End of test

PC₂₀-FEV₁

FVC

- 41.3 ± 15.5

- 18.4 ± 10.0 *

FEV₁

- 44.7 ± 14.5

- 24.6 ± 6.4 *

FEV₁/FVC

- 6.09 ± 6.8

- 4.1 ± 3.8 *

PEFR

- 44.2 ± 13.2

- 21.4 ± 10.6 *

FEF₅₀

- 61.2 ± 14.2

- 38.6 ± 16.9 *

Expiratory time (sec)

+2.8 ± 0.4

+2.2 ± 0.4 *

* Changes at PC₂₀-FEV₁ are significantly lower than at "end of test", p < 0.01

Bentur et al. BMC Pediatrics 2005 5:19   doi:10.1186/1471-2431-5-19