F2 and hereditary elliptocytosis: Binominal logistic regression analysis using laboratory data at the time of SLI diagnosis (aspartate transaminase [AST], alanine transaminase [ALT], creatinine [Cre], total bilirubin [T-Bil], and prothrombin International Normalized Ratio [PT-INR]), sex, age, and development of HE as explanatory variables revealed the development of HE to be the only factor associated with poor prognosis (supplemental Table 1, odds ratio [95% confidential interval]: 260.0 [17.9–3773.4]; p < 0.0001).