Table 1.
Baseline characteristics for SARDs and non-SARDs cohorts
| SARDs | Non-SARDs | p Value | |
| N | 63 | 64 | - |
| N Female (%) | 59 (94) | 59 (92) | 0.75 |
| Mean age in 2015 (SD) | 56.5 (13.1) | 57.0 (11.6) | 0.89 |
| Median age in 2015 (IQR, range) | 57 (20) | 58 (14.5) | |
| N with partner (%) | 42 (67) | 47 (73) | 0.41 |
| N with children at home (%) (n=5 missing responses) |
21 (33) | 23 (36) | 0.76 |
| N with high school education or less (%) | 17 (27) | 23 (36) | 0.28 |
| N completed university (%) | 21 (33) | 20 (31) | 0.80 |
| N Current or Former Smokers (%) | 30 (48%) | 29 (45%) | 0.79 |
| Mean pack-years, among ever-smokers (SD) (n=3 missing responses) | 10.6 (16.2) | 25.2 (36.0) | 0.06 |
| Mean years of smoking, among ever-smokers (SD) (n=1 missing response) | 16.7 (13.7) | 24.2 (13.4) | 0.04 |
| Mean years since smoking cessation, among former smokers (SD) (n=3 missing responses) |
16.6 (13.6) | 17.3 (8.4) | 0.84 |
| N consumed alcohol in past 12 months (%) | 47 (75) | 49 (77) | 0.79 |
| Mean body mass index (BMI) (SD) | 24.4 (5.3) | 27.0 (6.4) | 0.01 |
| N overweight (%) (BMI ≥25 kg/m2) | 21 (33) | 35 (55) | 0.02 |
| N obese (%) (BMI ≥30 kg/m2) | 9 (14) | 21 (33) | 0.01 |
| Mean BMI, corrected* (SD) | 25.5 (5.6) | 28.1 (6.8) | 0.02 |
| N overweight, after correction* (%) | 25 (40) | 37 (58) | 0.04 |
| N obese, after correction* (%) | 13 (21) | 24 (38) | 0.04 |
*Correction equations40 were applied to the original height and weight data to account for the fact that individuals tend to overestimate their height, and underestimate their weight, in self-reports.
SARDs, systemic autoimmune rheumatic diseases.