a decreasing trendp = 0.086
After the one-year time point, the difference in all-cause mortality based on L1 SMI quartiles showed a decreasing trend ( p = 0.086; Figure 4 A); however, the incidence of MACE continued to exhibit a significant difference ( p < 0.001; Figure 4 B) throughout the follow-up period, suggesting the potential of L1 SMI to predict both short- and long-term prognosis. 3.6.