Demographic and clinical characteristics of case and control patients
| Characteristic | No. of patients (%) or parameter value (mean ± SD) | P value (logit) | |
|---|---|---|---|
| Casea (n = 36) | Controlb (n = 72) | ||
| Age (yr) | 61.5 ± 18.5 | 61.6 ± 17 | 0.857 |
| Female | 18 (50) | 36 (50) | >0.99 |
| White race | 24 (66.7) | 61 (84.7) | 0.033 |
| Admitted from nursing home | 1 (2.8) | 1 (1.4) | 0.624 |
| White blood cell count (baseline) (in thousands per μl) | 10 ± 6.2 | 16.5 ± 28.4 | 0.138 |
| Hemoglobin level (baseline) (g/dl) | 10.3 ± 2.2 | 10.7 ± 2.3 | 0.354 |
| Platelet count (baseline) (in thousands per μl) | 177.8 ± 90.8 | 185.1 ± 112.5 | 0.798 |
| Creatinine level (baseline) (mg/dl) | 1.2 ± 1.6 | 1.4 ± 1.7 | 0.599 |
| Albumin level (baseline) (g/dl) | 3.4 ± 0.57 | 3.3 ± 0.64 | 0.615 |
| Glucose level (mg/dl) | |||
| Baseline | 137.9 ± 59.3 | 131.2 ± 55.7 | 0.572 |
| Minimum | 93.3 ± 21.5 | 86.9 ± 21.4 | 0.181 |
| Maximum | 209.8 ± 101.2 | 193.1 ± 85.3 | 0.337 |
| Body mass index (baseline) (kg/m2) | 25.2 ± 8 | 30.5 ± 8.5 | 0.134 |
| Central venous catheter | 13 (36.1) | 36 (50) | 0.17 |
| Fluid and electrolyte disorders | 21 (58.3) | 32 (44.4) | 0.193 |
| Peripheral vascular disease | 1 (2.8) | 8 (11.1) | 0.191 |
| Other neurological disorders | 4 (11.1) | 1 (1.4) | 0.063 |
| Pulmonary disorders | 5 (13.9) | 8 (11.1) | 0.684 |
| Diabetes without chronic complications | 8 (22.2) | 11 (15.3) | 0.506 |
| Renal failure | 5 (13.9) | 13 (18.1) | 0.572 |
| Liver disease | 1 (2.8) | 8 (11.1) | 0.166 |
| Lymphoma | 2 (5.6) | 4 (5.6) | >0.99 |
| Metastatic cancer | 3 (8.3) | 3 (4.2) | 0.355 |
| Solid tumor without metastasis | 9 (25) | 18 (25) | >0.99 |
| Alcohol abuse | 0 (0) | 5 (6.9) | >0.99 |
| Anemia deficiency | 10 (27.8) | 16 (22.2) | 0.538 |