Delineating Life‐Course Percentile Curves and Normative Values of Multi‐Systemic Ageing Metrics in the United Kingdom, the United States, and China

Our investigation delineated the potential heterogeneities and socioeconomic disparities in percentile curves of multi-systemic ageing metrics and provided their age-specific normative values tailored to different sexes and socioeconomic contexts based on three national datasets. This study may serve as a proof-of-concept for understanding the multi-dimensional signature of systemic ageing and calls for policies to promote health equity across nations when facing dramatic global ageing.