How can we measure social inequalities in health? This is a particularly difficult task. The three criteria commonly used in population surveys are: socioeconomic status, income, and educational attainment. However, these criteria do not account for other major determinants of health, such as life events, working conditions, lifestyles, social ties, and the living environment—factors that are only included in large-scale specialized surveys on social health inequalities, which can devote significant attention to this topic, such as the SIRS, Gazel, or Record cohorts, for example. INPES and other research institutes are currently developing new criteria to better account for social inequalities in health, including in general surveys on health behaviors. Interview with Tarik Benmarhnia, a research fellow at INPES in charge of this program.