GPT and hydrops fetalis: A slight elevation of the ALT level (40–99 IU/L) increased the risk of HF (HR, 1.551; 95% CI, 1.193 to 2.016) only in females, and an elevation of the ALT level over 100 IU/L) increased the risk of HF (HR, 1.591; 95% CI, 1.183 to 2.139) only in males.