Table 4: Correlation between free and total carnitine levels with C-ACT, FEV1% of predicted and FEV1/FVC ratio in asthmatic children at the beginning of the study.

Variable ( )r95% CI

C-ACT

13.1 ± 1.43
Total S Carnitine
40.1±2.63
0.360.09, 0.58<0.01*
Free S Carnitine
30.3 ± 1.8
0.880.8, 0.9<0.001*

FEV1 (% of predicted)
Total S Carnitine0.950.91, 0.97<0.001*
Free S Carnitine0.70.52, 0.82<0.001*

FEV1/FVC
Mean ± SD
60.2 ± 4.5
Total S Carnitine0.26 >0.05
Free S Carnitine0.07 >0.05

C-ACT: Childhood-Asthma control test. FEV1/FVC: Forced Expiratory Volume in 1st second/Forced Vital Capacity Ratio. (*) is significant, r correlation coefficient, CI confidence interval.
The table showed the correlation between serum carnitine (free and total) and C-ACT and some pulmonary function parameters in asthmatic children at the beginning of the study. C-ACT and FEV1 (% of predicted) had significant positive correlations with total and free serum carnitine. However, there were no significant correlations between FEV1/FVC and the levels of total and free serum carnitine.