Longitudinal relationship (model of changes) between disease activity measures and inflammation degree (SPARCC) on MRI-SI stratified for gender in five separate models
| Males | Females | |||||
|---|---|---|---|---|---|---|
| β | 95% CI | QIC | β | 95% CI | QIC | |
| ASDAS | 2.792 | 0.850 to 4.734 | 10 739 | 0.909 | −0.112 to 1.931 | 1462 |
| BASDAI (0–10) | 0.971 | 0.040 to 1.903 | 12 099 | 0.244 | −0.118 to 0.606 | 1534 |
| Night pain (0–10) | 0.852 | 0.227 to 1.476 | 11 982 | 0.040 | −0.140 to 0.220 | 1578 |
| Patient's global disease (0–10) | 0.574 | −0.042 to 1.191 | 12 272 | 0.108 | −0.066 to 0.282 | 1579 |
| CRP (mg/L) | 0.119 | −0.004 to 0.242 | 11 834 | 0.085 | −0.039 to 0.208 | 1531 |
Bold italics mean “statistically significant: p value <0.05)”.
Five separate models were built for both genders, each one of them including one of the disease activity parameters. All models were adjusted for age, symptom duration and HLA-B27.
ASDAS, Ankylosing Spondylitis Disease Activity Index; BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; CRP, C reactive protein; patient's global disease, patient’s global assessment for disease activity; QIC, quasi likelihood under independence model criterion; SPARCC, Spondyloarthritis Research Consortium of Canada.