Supplementary file 1_Prevalence and determinants of unmet healthcare needs in Chinese residents: evidence from the China family panel studies, 2012–2022.docx

Introduction<p>To examine temporal trends in unmet healthcare needs among Chinese residents from 2012 to 2022, identify their influencing factors, and high-risk populations, and provide empirical evidence for optimizing health service allocation and relevant policy formulation.</p>Methods<p>Based on six waves of the China Family Panel Studies (CFPS) spanning 2012 to 2022, this study included 11,067 residents aged 16 years and older who reported illness within the preceding 2 weeks, forming an unbalanced panel dataset with 30,925 observations.

Guided by Andersen’s Behavioral Model of Health Services Use, generalized estimating equations (GEE) and panel fixed-effects logit regression models were employed to identify factors associated with unmet healthcare needs.</p>Results<p>The prevalence of unmet healthcare needs among Chinese residents fluctuated significantly over the decade. It declined steadily from 37.50% in 2012 to 28.94% in 2016 and subsequently rebounded to 46.07% in 2022.