定义

伤残寿命年（years lived with disability, YLD）又称“健康寿命损失年(years of healthy life lost due to disability)”。指因患病或伤残引起健康寿命损失的年数。一般为患病人数与伤残权重的乘积，或者发病率、伤残权重和伤残平均持续时间的乘积。