Prevalence of Elevated Alanine Aminotransferase by Diagnostic Criterion, Age, and Gender among Adolescents
Table 2
Crude age-prevalence of elevated alanine aminotransferase (ALT) stratified by gender among the adolescents of Shenzhen, China, 2017–2018, separately based on the diagnostic criteria I and II.
Age (years)
Criterion I†
Criterion II‡
Overall
Boys
Girls
value
Overall
Boys
Girls
value
10–17
7.11 (6.52-7.7)
6.88 (6.09-7.66)
7.41 (6.51-8.31)
0.380
2.72 (2.35-3.09)
3.96 (3.36-4.56)
1.19 (0.82-1.57)
<0.001
10–11
3.60 (2.46-4.74)
2.87 (1.44-4.30)
4.37 (2.58-6.15)
0.198
0.78 (0.24-1.32)
1.53 (0.48-2.58)
0 (0-0)
0.005
12
4.37 (3.34-5.40)
4.00 (2.72-5.29)
4.90 (3.19-6.61)
0.402
1.79 (1.12-2.45)
2.22 (1.26-3.19)
1.14 (0.30-1.99)
0.119
13
7.01 (4.70-9.31)
2.97 (0.94-5.00)
12.38 (7.83-16.92)
<0.001
2.76 (1.28-4.24)
1.49 (0.04-2.93)
4.46 (1.61-7.30)
0.052
14
7.54 (5.98-9.10)
8.24 (5.94-10.55)
6.85 (4.75-8.95)
0.381
3.00 (1.99-4.00)
4.76 (2.98-6.55)
1.26 (0.33-2.19)
0.001
15
8.66 (7.36-9.97)
8.95 (7.19-10.70)
8.29 (6.35-10.24)
0.624
3.41 (2.57-4.25)
5.01 (3.67-6.36)
1.30 (0.50-2.09)
<0.001
16
10.39 (8.61-12.16)
10.58 (8.16-12.99)
10.16 (7.54-12.77)
0.817
4.05 (2.90-5.20)
6.57 (4.63-8.51)
0.98 (0.12-1.83)
<0.001
17
10.57 (6.73-14.41)
11.03 (5.76-16.29)
10.00 (4.39-15.61)
0.794
4.07 (1.60-6.53)
6.62 (2.44-10.8)
0.91 (0-2.68)
0.024
The prevalence of elevated ALT is expressed as % (95% confidence interval). †Diagnostic criterion I: >30 U/L for boys and >19 U/L for girls. ‡Diagnostic criterion II: >40 U/L for boys and girls. comparing girls with boys by Pearson’s chi-square test.
