Distribution of SLE-CSQ scores among the population-based cohort after exclusion of SLE and other CTDs
| SLE-CSQ score | n | Percentage |
| 0 | 41 781 | 49.1 |
| 1 | 24 994 | 29.3 |
| 2 | 11 719 | 13.8 |
| 3 | 4464 | 5.2 |
| 4 | 1563 | 1.8 |
| 5 | 480 | 0.6 |
| 6 | 121 | 0.1 |
| 7 | 35 | <0.01 |
| 8 | 10 | <0.01 |
| 9 | 2 | <0.01 |
| 10 | 1 | <0.01 |
| 11 | 0 | 0 |
| ≥4 | 2212 | 2.6 |
CTD, connective tissue disease; SLE-CSQ, Connective Tissue Disease Screening Questionnaire focusing on SLE.