BMI and BMI Percentile Change by Lung Function
Lung function classification was based on the CFF’s description of lung
disease severity in their latest annual
report20. In the adult group, 13 participants
were found to have normal lung function, defined as a percent predicted
FEV1 (ppFEV1) above or equal to 90%.
These patients saw an increase in BMI by 0.92 (1.34)
kg/m2. Sixteen participants had a
ppFEV1 between 70 and 89%, indicating mild lung
disease. They were found to have an average increase in BMI of
1.45(1.87) kg/m2. The next group of participants was
defined as having moderate lung disease based on a
ppFEV1 between 40 and 69%. Nineteen of the adult
patients had lung function values within this range. The average
increase in BMI in this population was 1.5 (1.83)
kg/m2. The last 16 adults have severe lung disease as
their ppFEV1 was ≤ 40%. This population had the most
significant increase in BMI with an average change of 1.94 (1.45)
kg/m2.
In the pediatric group, 26 children had normal lung function; the mean
increase of BMI percentile in this group was 7.04 (17.8) percentile. Six
children fell into the mild lung disease category and had an average
increase in BMI percentile of 5.83 (11.99) percentile. The moderate lung
disease category for pediatric participants consisted of 6 children.
This group saw an average growth of 16.5 (17.6) percentile. There were
no pediatric patients that fell into the severe lung disease category.