Table 2.
Results of mixed linear regression analyses with clinic/hospital as random variable and duration from symptom onset to first contact with a rheumatologist as independent variable
| SLE estimates (95% CI) | Primary Sjögren’s syndrome estimates (95% CI) | Systemic sclerosis estimates (95% CI) | Myositis estimates (95% CI) | Undifferentiated connective tissue disease estimates (95% CI) | |
|---|---|---|---|---|---|
| Age (per 10 years) | 0.38 (0.36; 0.41) | 0.46 (0.43; 0.49) | 0.41 (0.38; 0.44) | 0.19 (0.15; 0.24) | 0.36 (0.34; 0.39) |
| Gender (female) | 1.7 (1.7; 1.8) | 2.5 (2.4; 2.7) | 2.6 (2.4; 2.8) | 1.2 (1; 1.5) | 1.9 (1.8; 2) |
| Gender (male) | 1.8 (1.5; 2) | 2.3 (1.8; 2.9) | 1.5 (1.1; 1.8) | 1 (0.6; 1.4) | 1.5 (1.2; 1.7) |
| Disease severity* | |||||
| Asymptomatic (1) | 1.1 (0.8; 1.5) | 1.4 (0.6; 2.2) | 0.8 (− 0.3; 2) | 0.1 (− 0.9; 1.1) | 1 (0.6; 1.4) |
| Mild (2) | 1.1 (0.9; 1.3) | 1.7 (1.4; 2) | 1.5 (1.2; 1.8) | 0.2 (− 0.3; 0.7) | 1.2 (0.9; 1.4) |
| Moderate (3) | 0.9 (0.7; 1.1) | 1.6 (1.2; 1.9) | 1.6 (1.3; 1.9) | 0.3 (− 0.1; 0.7) | 0.9 (0.6; 1.1) |
| Severe (4) | 0.9 (0.6; 1.2) | 1.8 (1.2; 2.5) | 1.1 (0.6; 1.5) | 0.3 (− 0.3; 0.9) | 0.9 (0.5; 1.4) |
| Very severe (5) | 1.4 (0.7; 2) | 1.5 (− 1.4; 4.4) | 1.7 (0.8; 2.5) | 1.2 (0; 2.4) | 0.2 (− 1.1; 1.5) |
| Education (year) | − 0.007 (− 0.029; 0.014) | 0.041 (0.017; 0.064) | 0.032 (0.007; 0.057) | − 0.061 (− 0.089; − 0.032) | − 0.004 (− 0.025; 0.018) |
SLE systemic lupus erythematosus
*Model adjusted for age and sex