Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;

Fig 2

An external file that holds a picture, illustration, etc.
Object name is nihms443996f2.jpg

Estimated total US adults with back pain.a, Chronic back pain defined as back pain reported for 3 or more MEPS rounds during 2-year longitudinal panel survey.b, Nonchronic back pain defined as back pain reported for 1 or 2 MEPS rounds.