Table 2.
Demographics of CP members, May 2017
| Member characteristic | Frequency, n (%) |
|---|---|
| Disease | |
| Psoriasisa | 3246 (91.9) |
| Psoriasis with psoriatic arthritis | 1545 (43.7) |
| No responsea | 288 (8.1) |
| Agea | |
| Under 18 | 56 (1.6) |
| 18–30 | 383 (10.8) |
| 31–40 | 541 (15.3) |
| 41–50 | 699 (19.8) |
| 51–65 | 1105 (31.3) |
| Over 65 | 354 (10.0) |
| No response | 396 (11.2) |
| Genderb | |
| Female | 2151 (60.9) |
| Male | 964 (27.3) |
| No response | 419 (11.8) |
| Racial/ethnic background*,b | |
| White/Caucasian | 4918 (69.6) |
| Asian | 346 (4.9) |
| Hispanic/Latino | 317 (4.5) |
| American Indian/Alaskan Native | 242 (3.4) |
| Black/African American | 122 (1.7) |
| Native Hawaiian/Pacific Islander | 19 (0.3) |
| Other | 1253 (17.7) |
| No response | 979 (13.9) |
| Alcohol consumption (drinks per week) | |
| 1–3 | 972 (27.5) |
| 4–6 | 295 (8.3) |
| 7–9 | 191 (5.4) |
| 10 or more | 191 (5.4) |
| I don’t drink | 1338 (37.9) |
| No response | 547 (15.4) |
| Smoking (cigarettes per day) | |
| 1–10 | 208 (5.9) |
| 11–20 | 167 (4.7) |
| > 20 | 57 (1.6) |
| Not daily smoker | 179 (5.1) |
| Non-smoker | 2365 (67.0) |
| No response | 558 (15.8) |
| Immediate family with psoriasisa | 1296 (36.7) |
| Immediate family with psoriatic arthritisa | 921 (26.1) |
*Total sum > 100% because of multiple responses by subjects
aCalculated using total number of subjects (n = 3534)
bCalculated using ethnic data from both mother and father (n = 7068)