Aims: We analyzed indirect costs related to loss of labor productivity (LLP) in informal caregivers (ICs) of people with dementia (PwD) and the associated caregiver burden and patients' clinical variables.; Methods: Multicenter cohort study of PwD and their ICs (nā=ā287) focused on two groups: (1) home care and (2) institutional long-term care. The costs of LLP were assessed using the Resource Utilization Dementia instrument and a human capital approach.; Results: The cost for LLP was 378&OV0556;/month or 4.536&OV0556;/year.