Table 1 Demographic and clinical characteristics of participants with psoriatic arthritis
| Variables | Round 1 | Round 2 | Round 3 | ||
|---|---|---|---|---|---|
|
Cognitive interviews (n = 6) Paper-based |
Cognitive interviews (n = 6) Paper-based |
Cognitive interviews (n = 6) Web-based |
Pilot testing (n = 3) Paper-based |
Pilot testing (n = 3) Web-based | |
| Ages, years | 45 (15) | 48 (12) | 56 (14) | 48 (9) | 58 (12) |
| Women, n (%) | 5 (83) | 2 (33) | 2 (33) | 2 (67) | 2 (67) |
| Ethnicity, n (%) | |||||
| Australian European | 6 (100) | 5 (83) | 3 (5) | 1 (34) | 1 (34) |
| New Zealand European | 1 (17) | ||||
| Indian | 1 (17) | 1 (17) | |||
| South American | 1 (16) | 1 (33) | |||
| British | 1 (33) | 1 (33) | |||
| Bosnian | 1 (33) | ||||
| Body Mass Index, Kg/m2 | 34 (12) | 29 (6) | 30 (8) | 35 (11) | 26 (2) |
| Employment status, n (%) | |||||
| Employed full-time | 3 (50) | 3 (50) | 3 (50) | 1 (34) | 1 (34) |
| Employed part-time | 1 (17) | 1 (33) | |||
| Self-employed | 1 (17) | 1 (17) | |||
| Unemployed (health reason) | 1 (17) | 1 (17) | 1 (33) | ||
| Unemployed (home-maker) | 1 (17) | ||||
| Retired | 1 (16) | 1 (16) | 1 (16) | 1 (33) | 1 (33) |
| Education level, n (%) | |||||
| No school certificate | 1 (17) | 1 (17) | 1 (34) | 1 (33) | |
| School certificate | 1 (17) | 1 (33) | |||
| Higher school certificate | 2 (33) | 1 (17) | |||
| Trade/apprenticeship | 1 (17) | 3 (50) | |||
| Diploma | 2 (33) | ||||
| University degree or higher | 2 (33) | 2 (33) | 2 (33) | 1 (33) | 2 (67) |
| Disease duration, years | 15 (12) | 15 (9) | 5 (4) | 14 (10) | 3 (2) |
| Patient global assessment Joint & skin (VAS 0–100), mm | 74 (15) | 37 (37) | 40 (24) | 40 (38) | 50 (26) |
| Skin (VAS 0–100), mm | 36 (37) | 28 (29) | 25 (19) | 7 (6) | 37 (40) |
| Joint (VAS 0–100), mm | 66 (25) | 37 (35) | 47 (16) | 40 (36) | 50 (26) |
| Global pain (VAS 0–100), mm | 69 (21) | 37 (36) | 53 (21) | 40 (26) | 47 (38) |
| Foot pain (VAS 0–100), mm | 73 (22) | 37 (37) | 38 (43) | 33 (6) | 60 (26) |
| Length of interview, minutes | 63 (21) | 60 (23) | 6 (3) | *2 | *2 |
| Time to complete survey | *1 | *1 | 29 (6) | 26 (6) | 22 (4) |