The interaction effect of effort-reward imbalance and overcommitment on hypertension among Chinese workers: Findings from SHISO study

Background No previous studies investigated the interaction of effort‐reward imbalance (ERI) and overcommitment on blood pressure. Our aim was to investigate associations of ERI and overcommitment (and their interaction) with blood pressure and hypertension within a Chinese population. Methods Seven hundred thirty‐four participants from the Stress and Health in Shenzhen Workers study completed a demographics, job stressor and risk factor questionnaire, and their blood pressure was measured by mercury sphygmomanometers. Risk factors for blood pressure were analyzed by multiple linear regression and risk factors for hypertension by Poisson regression. Results Overcommitment was associated with diastolic blood pressure after adjustment for confounders and ERI among men (β = 0.17, P