a significant trendP <0.001
Further categorical analysis of the ALPS index revealed that, moderate and high ALPS index were associated with a decreased risk of MCI (HR=0.375, 95 % CI:0.143–0.984; HR=0.271, 95 % CI: 0.105–0.698, respectively) compared to low ALPS index, with a significant trend (HR=0.529, 95 % CI: 0.324–0.864, P <0.001) ( Table 1 ).