Prevalence of Elevated Alanine Aminotransferase by Diagnostic Criterion, Age, and Gender among Adolescents
Table 3
Univariate and multivariate logistic regression analyses with elevated alanine aminotransferase (ALT) as the outcome variable, based on the diagnostic criterion I (>30 U/L for boys and >19 U/L for girls).
Variable
Univariate analysis
Multivariate analysisa
Wald test
OR (95% CI)
Wald test
OR (95% CI)
Girls (vs. boys)
0.770
1.08 (0.91-1.30)
0.380
23.587
1.65 (1.35-2.03)
<0.001
Age (years)
62.625
<0.001
34.547
<0.001
10–11
1.00
1.00
12
0.917
1.22 (0.81-1.84)
0.338
1.295
1.29 (0.83-2.01)
0.255
13
8.108
2.02 (1.24-3.27)
0.004
7.431
2.06 (1.23-3.47)
0.006
14
14.816
2.18 (1.47-3.25)
<0.001
5.601
1.68 (1.09-2.59)
0.018
15
24.716
2.54 (1.76-3.66)
<0.001
12.089
2.03 (1.36-3.02)
0.001
16
34.169
3.10 (2.12-4.53)
<0.001
19.535
2.53 (1.67-3.83)
<0.001
17
18.656
3.16 (1.88-5.33)
<0.001
15.973
3.17 (1.80-5.58)
<0.001
Constant
—
—
—
667.963
—
<0.001
Boys or 10–11 years as the reference group; OR (95% CI): odds ratio (95% confidence interval). aAdjusted for gender, age, and body mass index using a multivariable logistic regression analysis.
