Table 5.
Multivariate Relationships for Obesity and Covariates with Patient Reported Outcomes
| SLAQ | CES-D | SF-36 Pain | SF-36 Vitality | |
|---|---|---|---|---|
| β (P) | β (P) | β (P) | β (P) | |
| Obese by FMI ≥ 13 kg/m2 | 3.33 (0.01) | 6.67 (0.004) | −5.55 (0.004) | −5.66 (0.01) |
| Age | 0.11 (0.06) | 0.02 (0.82) | −0.16 (0.05) | −0.20 (0.03) |
| Race | 0.82 (0.52) | 5.96 (0.01) | −1.62 (0.38) | −4.77 (0.02) |
| Low education1 | −0.64 (0.72) | −2.57 (0.41) | −0.45 (0.86) | −1.00 (0.73) |
| Poverty level income2 | 3.01 (0.10) | 8.67 (0.01) | −3.06 (0.24) | −6.39 (0.03) |
| Smoking, current | 3.91 (0.14) | 0.80 (0.86) | −2.95 (0.44) | −0.24 (0.96) |
| Disease Duration | −0.19 (0.01) | −0.01 (0.92) | 0.08 (0.45) | 0.18 (0.15) |
| BILD Score | 0.69 (0.02) | 0.51 (0.31) | −1.23 (0.004) | −0.90 (0.06) |
| Prednisone > 7.5 mg/day | 3.33 (0.03) | 2.65 (0.31) | −5.73 (0.01) | −2.38 (0.33) |
| Model F value (df) | 3.72 | 2.98 | 3.98 | 3.28 |
| Model R2 | 0.21 | 0.18 | 0.23 | 0.19 |
| Model Adjusted R2 | 0.16 | 0.12 | 0.17 | 0.13 |
SLAQ, Systemic Lupus Activity Questionnaire; CES-D, Center for Epidemiologic Studies Depression Scale; SF-36 Pain, Short Form 36 Health Survey Pain Subscale (higher scores indicate less pain); SF-36 Vitality, Short Form 36 Vitality Subscale (higher scores indicate less fatigue); FMI, fat mass index; BILD, Brief Index of Lupus Damage; DMARD, Disease-modifying antirheumatic drugs.
1
No education beyond high school.
2
Household income ≤ 125% of the federal poverty level.