GPT and Hypertension: Aminotransferase levels were also not associated with a diagnosis of hypertension (ALT = 25 [21-29] u/l in hypertensives and 21 [18-24] u/l in normotensives (p = 0.10); AST = 23 [20-26] u/l in hypertensives and 21 [19-23] in normotensives (p = 0.13)).