Table 1.
Studies of prevalence rate of skin and skin-related disease using the REP, Olmsted County, Minn., USA
| Reference | Disease | Age, years | Date/period of prevalence estimate | Prevalence |
|---|---|---|---|---|
| Shahi et al. [5] | HS | All | Jan 1, 2009 | 127.8 (108.9–146.8) |
| Shbeeb et al. [6] | Psoriasis | ≥18 | Jan 1, 1992 | 700.0 (650.0–750.0) |
| Shbeeb et al. [6] | Psoriatic arthritis | ≥18 | Jan 1, 1992 | 101.0 (80.0–120.0) |
| Wilson et al. [7] | Psoriatic arthritis | All | Jan 1, 2000 | 158.0 (132.0–185.0) |
| Calamia et al. [8] | BD | ≥18 | 2000 | 5.2 (0.64–9.84) |
| Bendewald et al. [9] | DM | All | Jan 1, 2007 | 21.42 (13.07–29.77) |
| Michet et al. [10] | Scleroderma | All | Jan 1, 1980 | 13.8 (4.2–23.4) |
| Kurland et al. [11] | SLE | All | Jan 1, 1968 | 48.0 |
| Michet et al. [10] | SLE | All | Jan 1, 1980 | 40.0 (23.5–57.5) |
| Uramoto et al. [12] | SLE | All | Jan 1, 1993 | 122.0 (97.0–147.0) |
| Jarukitsopa et al. [13] | SLE | All | Jan 1, 2006 | 30.5 (21.1–39.9) |
| Michet et al. [10] | Suspected SLE | All | Jan 1, 1980 | 32.8 (18.1–47.5) |
| Nobrega et al. [14] | Combined SLE | All | Jan 1, 1966 | 41.8 |
| Michet et al. [10] | Discoid lupus erythematosus | All | Jan 1, 1980 | 27.6 (14.1–41.1) |
| Durosaro et al. [15] | CLE | All | Jan 1, 2006 | 73.2 (58.3–88.2) |
| Jarukitsopa et al. [13] | CLE | All | Jan 1, 2006 | 70.4 (55.9–84.8) |
CLE = Cutaneous lupus erythematosus. Figures in parentheses indicate 95% confidence intervals. Prevalence estimate: the prevalence is a point prevalence if it was reported for a specific point in time (i.e. a specific day and year), but the prevalence is a period prevalence if it was reported for a specified period (e.g. months or years). In Nobrega et al. [14], combined SLE is defined as classic SLE (positive LE cell test and ≥3 major systemic manifestations of LE) plus rheumatoid arthritis with LE (previous rheumatoid arthritis with positive LE cell test and ≥3 major systemic manifestations of LE). As for Durosaro et al. [15] and Jarukitsopa et al. [13], both studies reported the point prevalence of cutaneous lupus erythematosus for the Olmsted County population in January 2006. Differences in these prevalences are due to differences in the methodology used in defining the denominator and in adjusting the population. Moreover, these prevalence estimates for cutaneous lupus erythematosus are underestimates since they were derived from incident cases in Olmsted County from 1965 to 2002.