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Table 13 Reference equation for lung clearance index (LCI) from infancy to 15 years of age

From: Proceedings of the Canadian society of allergy and clinical immunology annual scientific meeting 2015

 

Age ≤4

Age >4

Skewness (L)

−2.12

–

Predicted (M)

6.88–6.95 (Age/10)2 − 1.16 [(log Length)/10]3

6.15

Coefficient of variance (S)

0.07

–

Upper limited of normal (ULN)

Predicted × [(1.96 × 0.07 × (−2.12)) + 1]1/−2.12

6.91