Table 4

Differences between eNO concentrations (in ppb) of healthy (n = 73–80) and “diseased” (n = 41–45) children measured at three different flow rates on line and off line

Flow rate (ml/s) Mean difference (ppb) 95% CI of difference (ppb) p value4-150
On line
  50 18.913.2 to 26.1<0.001
 10013.5 9.8 to 18.7<0.001
 15011.3 7.8 to 14.6<0.001
Off line
  50 19.713.8 to 26.4<0.001
 10014.710.4 to 19.3<0.001
 15011.8 8.5 to 15.6<0.001

  • Values are geometric means of differences and 95% CI of differences.

  • ↵4-150 Two tailed test.