Sample baseline characteristics, total and by frailty classification
| Frailty classification | |||||
|---|---|---|---|---|---|
| Total (n=152) | Robust (n=44) | Prefrail (n=77) | Frail (n=31) | p Value* | |
| Sociodemographic | |||||
| Age, years | 48.0±12.3 | 48.0±14.2 | 46.7±11.8 | 51.0±10.0 | 0.25 |
| White | 64.5 (98) | 63.6 (28) | 68.8 (53) | 54.8 (17) | 0.39 |
| Low education | 13.8 (21) | 13.6 (6) | 11.7 (9) | 19.4 (6) | 0.58 |
| Lupus-specific and general health | |||||
| Lupus duration | 15.6±9.4 | 14.6±10.1 | 15.2±8.2 | 18.3±11.0 | 0.21 |
| Oral steroids | 46.0 (69) | 31.8 (14) | 46.1 (35) | 66.7 (20) | 0.01 |
| Oral steroid, mg/day | 3.9±5.9 | 3.6±7.2 | 3.4±4.8 | 5.5±6.3 | 0.27 |
| SLE activity | 4.4±2.8 | 2.6±2.2 | 4.8±2.5 | 6.0±3.0 | <0.0001 |
| SLAQ | 12.8±7.4 | 7.1±5.2 | 13.8±6.5 | 18.4±6.9 | <0.0001 |
| BILD | 2.1±2.0 | 1.2±1.2 | 2.1±2.0 | 3.2±2.4 | <0.0001 |
| Pain | 42.0±10.9 | 50.7±9.7 | 39.9±9.4 | 34.9±7.7 | <0.0001 |
| Obese (BMI ≥30 kg/m2) | 30.3 (44) | 16.7 (7) | 34.3 (25) | 40.0 (12) | 0.06 |
| Smoking | 0.41 | ||||
| Current | 6.0 (9) | 6.8 (3) | 5.3 (4) | 6.5 (2) | |
| Former | 31.8 (48) | 36.4 (16) | 25.0 (19) | 41.9 (13) | |
SLE activity=self-reported on a 0 (inactive) to 10 (extremely active) scale.
Note: Tabled values are mean±SD or % (n).
*From analysis of variance or χ2 analysis comparing frailty classifications.
BMI, body mass index; BILD, Brief Index of Lupus Damage.43 ,44 Possible score range 0–46; higher scores reflect greater disease damage; SLAQ, Systemic Lupus Activity Questionnaire.29 ,30 Possible score range 0–44; higher scores reflect greater disease activity.