Fig. 2

Cumulative incidence of fatty changes. a Unmatched individuals, prior to propensity score matching, Normal-GGT group (n = 2713): These individuals had normal serum gamma-glutamyltransferase levels that continued during the observation period (broken line). The Abnormal-GGT group individuals (n = 264) had abnormal serum gamma-glutamyltransferase values in more than half of the tests during the observation period (solid line). Results analyzed by log-rank test. b Propensity score matched individuals, after adjustment by propensity score matching. Normal-GGT group (n = 260) (broken line) versus Abnormal-GGT group (n = 260) (solid line). Results analyzed by log-rank test