How common is gastroparesis?

See below:: Only one single study has assessed the prevalence of gastroparesis. Based on clinical records, about 30 per 100, 000 persons will have sought medical attention for gastroparesis with an increasing prevalence with age. H.-k. Jung, r. S. Choung, g. R. Locke iii et al., “the incidence, prevalence, and outcomes of patients with gastroparesis in olmsted county, minnesota, from 1996 to 2006, ” gastroenter.