Table 2.
a ALT threshold levels used in screening for hepatic steatosis and corresponding sensitivities and specificities for all participants
| ALT (U/L) | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|
| >20 | 64 % | 77 % | 57 % | 82 % |
| >25 | 48 % | 86 % | 62 % | 77 % |
| >30 | 33 % | 90 % | 61 % | 74 % |
| >35 | 24 % | 92 % | 59 % | 71 % |
| >40 | 19 % | 94 % | 62 % | 71 % |
| >66 U/L | 10 % | 99 % | 75 % | 71 % |
| b | ||||
| ALT threshold levels used in screening for hepatic steatosis and corresponding sensitivities and specificities for boys only | ||||
| ALT (U/L) | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
| >20 | 79 % | 63 % | 73 % | 71 % |
| >25 | 66 % | 78 % | 80 % | 65 % |
| >30 | 45 % | 89 % | 85 % | 57 % |
| >35 | 38 % | 89 % | 82 % | 53 % |
| >40 | 29 % | 95 % | 88 % | 51 % |
| >66 U/L | 20 % | 100 % | 100 % | 50 % |