Table 3.
Subgroup analysis of the correlation between the attenuation coefficient and controlled attenuation parameter
| Subgroup | Spearman correlation coefficient | P-value |
|---|---|---|
| Sex | ||
| Female | 0.779 | 0.003 |
| Male | 0.610 | <0.001 |
| BMI (kg/m2) | ||
| <30 | 0.730 | <0.001 |
| ≥30 | -0.202 | 0.551 |
| BMI percentile | ||
| Normal (<85th percentile) | 0.772 | 0.009 |
| Overweight (85th–94th percentile) | 0.738 | 0.003 |
| Obesity (95th–98th percentile) | 0.912 | 0.011 |
| Severe obesity (≥99th percentile) | 0.544 | <0.001 |
| ALT | ||
| Normal | 0.850 | 0.007 |
| Abnormala) | 0.548 | <0.001 |
BMI, body mass index; ALT, alanine transaminase.
a)
Abnormal ALT was defined as elevated ALT (≥52 IU/L for boys, ≥44 IU/L for girls) more than twice the upper limit of normal (26 IU/L for boys, 22 IU/L for girls).