Service manual

IQmark Digital Spirometer Operation Manual
80
Knudson – Pediatric
Parameter Sex Race Age
Range
Predicted Equation SEE CI
95%
Source
VC M/F W All Predicted VC = Predicted FVC
FVC M W 6 - 12 0.0409H - 3.3756 0.3503 0.576 Ref. 13
M W 12 - 18 0.0590H + 0.0739A - 6.8865 0.4708 0.774 “
F W 6 - 11 0.0430H - 3.7486 0.3728 0.613 “
F W 11- 20 0.0416H + 0.0699A - 4.4470 0.4973 0.818 “
FEV
0.5
M W 6 - 18 0.030H + 0.043A –3.054 0.425 0.699 Ref. 14
F W 6 - 18 0.019H + 0.061A – 1.738 0.364 0.599 “
FEV
1
M 6 - 12 0.0348H - 2.8142 0.2734 0.449 Ref. 13
M 12 - 18 0.0519H + 0.0636A - 6.1181 0.4458 0.733 “
F 6 - 11 0.0336H - 2.7578 0.2697 0.444 “
F 11 - 20 0.0351H + 0.0694A - 3.7622 0.4223 0.695 “
FEV
1
/FVC% M 6 - 18 -0.0813H + 100.4389 6.5752 10.82 Ref. 13
F 6 - 20 -0.1909H + 0.6655A + 109.9739 7.8385 12.89 “
FEF
25-75%
M 6 - 12 0.0338H - 2.3197 0.6263 1.03 Ref. 13
M 12 - 18 0.0539H + 0.0749A - 6.1990 0.9861 1.62 “
F 6 - 11 0.0220H - 0.8119 0.6568 1.08 “
F 11 - 20 0.0279H + 0.1275A - 2.8007 0.8653 1.42 “
PEF M 6 - 18 0.078H + 0.1660A - 8.060 1.653 2.72 Ref. 14
F 6 - 20 0.0490H + 0.157A - 3.916 1.339 2.20 “
FEF
25%
(MEF
75%
)
M 6 - 18 0.0700H + 0.1470A - 7.054 1.530 2.52 Ref. 14
F 6 - 20 0.0440H + 0.1440A - 3.365 1.290 2.12 “
FEF
50%
(MEF
50%
)
M 6 - 12 0.0378H - 2.5454 0.6538 1.08 Ref. 13
M 12 - 18 0.0543H + 0.1150A - 6.3851 1.1196 1.84 “
F 6 - 11 0.1846A + 0.7362 0.6689 1.10 “
F 11 - 20 0.0288H + 0.1111A - 2.3040 0.9585 1.58 “
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