Table 3.
Survey Respondent Characteristics by Response Categories
| Always Chooses Plasma Exchange | Always Declines Plasma Exchange | Chooses Plasma Exchange Only at Higher Risk | Declines Plasma Exchange Only at Higher Risk | Other Patterns | P | |
|---|---|---|---|---|---|---|
| Total | 145 (30.9%) | 80 (17.0%) | 103 (21.9%) | 92 (19.6%) | 50 (10.6%) | |
| Age, years (SD) | 57.3 (14.4) | 63.2 (13.6) | 59.0 (12.8) | 54.8 (15.8) | 61.2 (13.3) | <0.01 |
| Female sex, n (%) | 98 (67.6%) | 57 (71.3%) | 73 (70.9%) | 69 (75.0%) | 33(66.0%) | 0.57 |
| Country, n (%) | ||||||
| Canada | 17 (11.7%) | 12 (15.0%) | 18 (17.5%) | 10 (10.9%) | 8 (16.0%) | <0.01 |
| United Kingdom | 45 (31.0%) | 5 (6.3%) | 14 (13.6%) | 23 (25.0%) | 7 (14.0%) | |
| United States | 77 (53.1%) | 60 (75.0%) | 66 (64.1%) | 54 (58.7%) | 33 (66.0%) | |
| Other | 6 (4.1%) | 3 (3.8%) | 5 (4.9%) | 5 (5.4%) | 2 (4.0%) | |
| Kidney disease, n (%) (N = 302) |
103 (71.0%) | 42 (52.5%) | 69 (67.0%) | 60 (65.2%) | 28 (56.0%) | 0.05 |
| Previous dialysis, n (%) (N = 62) |
34 (23.4%) | 4 (5.0%) | 13 (12.6%) | 9 (9.8%) | 2 (4.0%) | <0.01 |
| Current dialysis/transplant, n (%) (N = 28) |
15 (10.3%) | 0 (0%) | 6 (5.8%) | 6 (6.5%) | 1 (2.0%) | 0.02 |
| Previous plasma exchange, n (%) (N = 100) |
54 (37.2%) | 3 (3.8%) | 16 (15.5%) | 18 (19.6%) | 9 (18.0%) | <0.01 |
| Previous infection, n (%) (N = 234) |
73 (50.3%) | 36 (45.0%) | 45 (43.7%) | 52 (56.5%) | 28 (56.0%) | 0.32 |
Abbreviation: SD, standard deviation.