Union members enjoy better wages and benefits and greater power than nonmembers,
which can improve health. However, the longitudinal union-health relationship remains
uncertain, partially because of healthy-worker bias, which cannot be addressed without high-
quality data and methods that account for exposure-confounder feedback and structural
nonpositivity. Applying one such method, the parametric g-formula, to US-based Panel
Study of Income Dynamics data, we analyzed the longitudinal relationships between union …

Social epidemiology pays attention to the detrimental role of some social factors in
explaining population health, among which work and employment play a great part.
However, even though such a relationship has been identified, very few studies have given
attention to collective bargaining and the way work and employment are regulated. In their
recent paper, Eisenberg-Guyot et al.(1) made an attempt to assess the topic using data from
the Panel Study of Income Dynamics. The study was clearly needed, but it does not seem to …