Table 1.
Demographic and clinical characteristics
| Total
|
IBD
|
RA/PA
|
||||
|---|---|---|---|---|---|---|
| SDM (n=120) |
Non-SDM (n=237) |
SDM (n=33) |
Non-SDM (n=69) |
SDM (n=75) |
Non-SDM (n=129) |
|
| Age (years), mean (SD) | 47.9 (11.6) | 48.0 (12.4) | 42.9 (11.7) | 43.4 (12.7) | 51.3 (10.7) | 51.0 (11.3) |
| Gender: n (%) female | 90 (75.0) | 148 (62.5)* | 24 (72.7) | 36 (52.2) | 62 (82.7) | 88 (68.2)* |
| Race/ethnicity, n (%) | ||||||
| American Indian or Alaskan Native | 3 (2.5) | 2 (0.9) | 1 (3.0) | 0 (0.0) | 2 (2.7) | 2 (1.6) |
| Asian | 2 (1.7) | 2 (0.9) | 0 (0.0) | 0 (0.0) | 2 (2.7) | 2 (1.6) |
| Black or African–American | 5 (4.2) | 12 (5.1) | 0 (0.0) | 1 (1.5) | 5 (6.7) | 10 (7.8) |
| Native Hawaiian or Pacific Islander | 0 (0) | 0 (0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| White | 108 (90.0) | 216 (91.9) | 31 (93.9) | 67 (97.1) | 65 (86.7) | 113 (88.3) |
| Other race | 5 (4.2) | 5 (2.1) | 2 (6.1) | 1 (1.5) | 3 (4.0) | 3 (2.3) |
| Hispanic ethnicity (yes) | 8 (6.7) | 14 (5.9) | 3 (9.1) | 0 (0.0)* | 5 (6.7) | 10 (7.8) |
| Geographic region, n (%) | ||||||
| Northeast | 1 (0.8) | 12 (5.1) | 1 (3.0) | 5 (7.2) | 1 (1.3) | 3 (2.3) |
| Midwest | 40 (33.3) | 56 (23.6) | 12 (36.4) | 19 (27.5) | 23 (30.7) | 30 (23.3) |
| South | 55 (45.8) | 120 (50.6) | 12 (36.4) | 31 (44.9) | 38 (50.7) | 74 (57.4) |
| West | 24 (20.0) | 49 (20.7) | 8 (24.2) | 14 (20.3) | 13 (17.3) | 22 (17.0) |
| Autoimmune condition, n (%)a | ||||||
| Ulcerative colitis | 13 (10.8) | 21 (8.9)* | 13 (39.4) | 21 (30.4) | 1 (1.3) | 2 (1.6) |
| Crohn’s disease | 21 (17.5) | 50 (21.1)*** | 21 (63.6) | 50 (72.5) | 0 (0.0) | 2 (1.6) |
| Rheumatoid arthritis | 60 (50.0) | 101 (42.6) | 0 (0.0) | 3 (4.4) | 60 (80.0) | 101 (78.3) |
| Psoriatic arthritis | 17 (14.2) | 32 (13.5)* | 1 (3.0) | 0 (0.0) | 17 (22.7) | 32 (24.8) |
| Quan–Charlson score, mean (SD) | 1.0 (1.0) | 0.7 (1.0)* | 0.6 (1.1) | 0.3 (1.0) | 1.2 (0.8) | 1.1 (1.1) |
| 0, n (%) | 42 (35.0) | 123 (51.9)** | 23 (69.7) | 59 (85.5) | 7 (9.3) | 32 (24.8)** |
| 1–2, n (%) | 69 (57.5) | 97 (40.9)** | 8 (24.2) | 7 (10.1) | 62 (82.7) | 84 (65.1)** |
| 3–4, n (%) | 8 (6.7) | 15 (6.3) | 2 (6.1) | 2 (2.9) | 5 (6.7) | 11 (8.5) |
| ≥5, n (%) | 1 (0.8) | 2 (0.8) | 0 (0.0) | 1 (1.5) | 1 (1.3) | 2 (1.6) |
| Health status score, mean (SD) | 48.0 (23.4) | 55.4 (22.5)** | 51.7 (18.5) | 53.9 (20.4) | 45.3 (25.5) | 51.0 (22.6) |
| Provider specialty, n (%) | ||||||
| Rheumatology | 66 (56.4) | 114 (48.5) | 0 (0.0) | 2 (2.9) | 62 (84.9) | 103 (80.5) |
| Gastroenterology | 30 (25.6) | 43 (18.3) | 30 (93.8) | 43 (62.3)*** | 0 (0.0) | 3 (2.3) |
| Dermatology | 13 (11.1) | 30 (12.8) | 0 (0.0) | 1 (1.5) | 5 (6.9) | 5 (3.9) |
| Internal medicine | 1 (0.9) | 9 (3.8) | 1 (3.1) | 1 (1.5) | 1 (1.4) | 8 (6.3) |
Notes:
*
Difference between SDM and non-SDM in category at P<0.05;
**
P<0.01;
***
P≤0.001.
a
These conditions are not mutually exclusive and percentages may not sum to 100.
Abbreviations: IBD, inflammatory bowel disease; PA, psoriatic arthritis; RA, rheumatoid arthritis; SDM, shared decision-making; SD, standard deviation.