TABLE I.
Patient and Procedure-Related Characteristics of Historical Control and Glucose Protocol Groups
| Historical Control Group (N = 886) | Glucose Protocol Group (N = 1,398) | P Value | |
|---|---|---|---|
| Patient characteristics | |||
| Male sex* | 45.50% | 38.30% | 0.003 |
| Age† (yr) | 66 ± 10.5 | 69 ± 9.5 | <0.0001 |
| History of diabetes* | 21.70% | 22.50% | 0.69 |
| Body mass index† (kg/m2) | 33 ± 6.9 | 33 ± 7.5 | 0.76 |
| HbA1C† (%) | 6.22 ± 1.0 | 6.19 ± 1.0 | 0.976 |
| Hematocrit† (vol%) | 39.8 ± 5.0 | 38.8 ± 4.8 | <0.0001 |
| Creatinine† (mg/dL) | 0.95 ± 0.4 | 0.96 ± 0.4 | 0.68 |
| Surgery characteristics | |||
| Total knee replacement‡ | 545 | 874 | 0.63 |
| Knee revisions‡ | 38 | 56 | 0.74 |
| Total hip replacement‡ | 294 | 445 | 0.5 |
| Hip revisions‡ | 9 | 23 | 0.21 |
| Procedure duration† (min) | 153 ± 43 | 142 ± 45 | <0.0001 |
| Mean transfusion† (mL) | 38 ± 305 | 35 ± 261 | 0.79 |
| Steroids for nausea* | 49% | 61% | <0.0001 |
| General anesthesia* | 27% | 31% | 0.05 |
*
The values are given as the percentage of patients.
†
The values are given as the mean and the standard deviation.
‡
The values are given as the number of patients.