Fig 1.
Flow chart.
Table 1.
Model expression formula.
Table 2.
Baseline characteristic of the study population.
Table 3.
The relationship between RCIs and all-cause mortality.
Fig 2.
Curve fitting of the relationship between RCIs and all-cause mortality.
Fig 3.
Curve fitting after sex stratification of the relationship between RCIs and all-cause mortality.
Table 4.
Threshold effect analysis of relationship of RCIs on all-cause mortality.