TY - JOUR T1 - The bidirectional relationships between effort-reward imbalance and sleep problems among older workers JF - Sleep Health Y1 - 2020 A1 - Eunae Cho A1 - Tuo-Yu Chen KW - Changes KW - Effort-reward imbalance model KW - longitudinal KW - Reciprocal KW - Senior workers AB - Background Sleep problems are common among working individuals. A growing body of research has documented that effort-reward imbalance (ERI) predicts poor sleep outcomes. Objective Extending this literature, we investigated the bidirectional relationship between ERI and sleep problems; for each direction, we tested predictor’s baseline level and its changes over time. Data We drew a subsample of older workers aged 55 years and older from the Health and Retirement Study (N=860). Design We examined whether baseline ERI and ERI changes predict sleep problems at follow-up. In parallel, we examined whether baseline sleep problems and sleep problem changes predict ERI at follow-up. Results For the ERI-to-sleep-problems direction, baseline ERI predicted the experience of any sleep problems at follow-up. The odds of experiencing sleep problems at follow-up was higher among respondents who consistently perceived ERI over the 4-year compared with those who remain balanced. For the sleep-problems-to-ERI direction, baseline sleep problems predicted ERI at follow-up. Older workers who repeatedly reported sleep problems over the 4-year period had the greatest odds to perceive ERI at follow-up. Conclusion ERI and sleep problems are reciprocally related among older workers. Both ERI and sleep problems change over time, hence considering their dynamic nature may provide additional insights. ER -