Table I.
Demographic and laboratory characteristics of our patient population
| Variables | Total (n = 623) | With major complications (n = 14) | Without major complications (n = 609) | Value of p |
|---|---|---|---|---|
| Female (%) | 439 (70.5) | 14 (100) | 425 (69.8) | 0.04 |
| Age [years], mean±SD | 34.4 ±14.2 | 32.7 ±12.2 | 34.4 ±14.2 | NS |
| Comorbidities (%) | ||||
| Systemic lupus erythematosus | 285 (45.7) | 12 (85.7) | 273 (44.8) | 0.001 |
| Overweight/obesity (IMC > 27 kg/m2) | 190 (30.5) | 2 (14.3) | 188 (30.9) | NS |
| Arterial hypertension | 168 (27.1) | 4 (28.6) | 164 (27) | NS |
| Dyslipidemia | 83 (13.4) | 1 (7.1) | 82 (13.5) | NS |
| Diabetes mellitus | 41 (6.6) | 0 (0) | 41 (6.8) | NS |
| Liver disease | 8 (1.3) | 0 (0) | 8 (1.3) | NS |
| Pre-biopsy laboratories (mean±SD) | ||||
| Hemoglobin [g/dl] | 12.2 ±2.5 | 10.1 ±2.1 | 12.2 ±2.4 | < 0.001 |
| (max-min) | (6.3-19.1) | (7.6-15) | (6.3-19.1) | |
| Platelets (×103/µl) | 281 ±112 | 207.9 ±106 | 283 ±112.4 | 0.009 |
| (max-min) | (51-957) | (92-424) | (51-957) | |
| Prothrombin time [s] | 10.1 ±1.5 | 10.1 ±1.9 | 10.2 ±2.9 | NS |
| (max-min) | (4-15.9) | (4-15.9) | (9-12.8) | |
| Thromboplastin time [s] | 29.4 ±4.5 | 30.3 ±6.1 | 29.8 ±7.5 | NS |
| (max-min) | (20-46) | (22-39) | (20-46) | |
| Serum creatinine [mg/dl] | 1.7 ±1.5 | 2.1 ±0.86 | 1.7 ±1.5 | 0.018 |
| (max-min) | (0.1-13) | (0.9-3.2) | (0.1-13) | |
| Blood urea nitrogen [mg/dl] | 29.4 ±22.3 | 56.5 ±28.2 | 28.7 ±21.7 | < 0.001 |
| (max-min) | (3.1-137) | (16-98.4) | (3.1-137) | |
| Serum albumin [g/dl] | 2.4 ±0.91 | 1.87 ±0.59 | 2.47 ±0.90 | 0.031 |
| (max-min) | (0.6-4.8) | (1-2) | (0.6-4.2) | |
| Albuminuria [g/day] | 6.0 ±5.1 | 4.9 ±3.03 | 6.1 ±5.2 | NS |
| (max-min) | (0.1-39) | (0.21-10.8) | (0.1-39) |