Annual decrease in the risk of first, second, and third hospital admission after the age of 60, stratified in four different time periods, for men and women.

+annual decrease in the risk of hospitalization. A negative percentage indicates an annual increase in the risk.*adjusted for the interaction between age and the number of years since the first hospital admission.#adjusted for interaction between age and the number of years since the second hospital admission.

+住院风险的年度降幅。若百分比为负值，则代表住院风险呈年度上升态势。*经年龄与首次住院后年限的交互作用校正#经年龄与第二次住院后年限的交互作用校正。