“…While many of the studies focused on select populations, such as pregnant women (Reitzel et al, 2007), adolescents (Quon and McGrath, 2014), older adults (Garbarski, 2010), or civil service workers (Singh-Manoux et al, 2003, relatively few used representative samples of the general population (Nobles et al, 2013;Sakurai et al, 2010;Wolff et al, 2010). Understanding the interplay of objective and subjective SES, however, requires samples that are free from selection bias, including all SES groups of a population, as associations found in restricted samples might misrepresent those apparent in the general population.…”