biostudies-literatureUnknown48(2)Lee DW<h4>Objectives</h4>Unmet medical need is defined as the perceived need for medical service that is not received. Although the association between unmet medical needs and working hours has been explored before, the combined effect of household income has not been investigated thus far. This study, therefore, aimed to examine the differential association between working hours and the risk of unmet medical needs according to household income.<h4>Methods</h4>A total of 7047 participants enrolled in the Korea Health Panel data 2011-2014 were considered. The analytical method used in this study was a generalized estimating equation model that accounted for repeated measured participants. By controlling for time-invariant individual-fixed effects, we identified the relationship between long workiScandinavian journal of work, environment & health109-117https://www.ebi.ac.uk/biostudies/studies/S-EPMC9045236biostudies-literatureDifferential impact of working hours on unmet medical needs by income level: a longitudinal study of Korean workers.PMC9045236Myong JPLee DWChoi JKang MYKim HRfalseDifferential impact of working hours on unmet medical needs by income level: a longitudinal study of Korean workers.<h4>Objectives</h4>Unmet medical need is defined as the perceived need for medical service that is not received. Although the association between unmet medical needs and working hours has been explored before, the combined effect of household income has not been investigated thus far. This study, therefore, aimed to examine the differential association between working hours and the risk of unmet medical needs according to household income.<h4>Methods</h4>A total of 7047 participants enrolled in the Korea Health Panel data 2011-2014 were considered. The analytical method used in this study was a generalized estimating equation model that accounted for repeated measured participants. By controlling for time-invariant individual-fixed effects, we identified the relationship between long worki2022-01-01T00:00:00Z2022 Mar2025-04-22T07:47:11.958Z2025-04-05T22:18:11.682ZS-EPMC90452363480206210.5271/sjweh.3999