Table 2.
Multivariable-adjusted odds ratios for the association between anemia, low BMI, inflammatory status, disease activity, and functional impairment
| OR (95% CI) | ||||
|---|---|---|---|---|
| Controla | Low BMI group | Anemic group | Combined group | |
| All patients, n | 3160 | 408 | 489 | 89 |
| hsCRP | 1[Reference] | 1.44 (1.17–1.78) | 1.91 (1.56–2.32) | 3.59 (2.22–5.80) |
| BASFI | 1[Reference] | 1.57 (1.25–1.97) | 1.47 (1.19–1.80) | 3.11 (2.02–4.78) |
| BASDAI | 1[Reference] | 1.07 (0.87–1.33) | 1.20 (0.99–1.45) | 2.14 (1.39–3.31) |
| ASDAS_CRP | 1[Reference] | 1.22 (0.98–1.51) | 1.56 (1.26–1.94) | 3.73 (2.18–6.37) |
ASDAS_CRP Ankylosing Spondylitis Disease Activity Score with CRP, BASDAI Bath Ankylosing Spondylitis Disease Activity Index, BASFI Bath Ankylosing Spondylitis Functional Index, hsCRP hypersensitive C-reactive protein
aControl group is used as the reference category for all comparisons. Odds ratios (ORs) for the low-BMI group, anemic group, and combined group are calculated relative to the control group, which has an assigned OR of 1[Reference]