The demographic composition of the POUD and the No POUD groups are described in Table 1. Averaged prevalence data are presented in three time groups: 2002–2005, 2006–2009, and 2010–2014. Compared to the No POUD group, the POUD group was more likely to be male, younger, and to identify as either white or Native American or Alaskan Native, and less likely to identify as Black or Asian at every time point (see Table 1).
