Table 1.
Clinical and surgery-related data of the groups.
| Group 1 (n = 72) | Group 2 (n = 52) | Control group (n = 58) | P value * | |
|---|---|---|---|---|
| Age ± SD (yr) | 62.89 ± 7.60 | 61.42 ± 8.72 | 65.11 ± 8.80 | .312 |
| Gender | ||||
| Male | 19 | 13 | 16 | .955 |
| Female | 53 | 39 | 42 | |
| Side L:Left, R: Right, Bil : Bilateral (L/R/Bil) | 27/32/13 | 20/17/15 | 28/14/16 | .064 |
| Height ± SD (m) | 1.54 ± 0.12 | 1.53 ± 0.09 | 1.58 ± 0.31 | .114 |
| Weight ± SD (kg) | 65.49 ± 10.50 | 62.76 ± 11.95 | 63.64 ± 9.50 | .189 |
| BMI ± SD (kg/m2) | 26.06 ± 3.78 | 25.22 ± 3.94 | 26.54 ± 4.41 | .228 |
| Operative time ± SD (min) | 95.12 ± 37.16 | 91.76 ± 25.83 | 90.35 ± 40.22 | .330 |
| Preoperative mean | ||||
| Hgb (g/dL) | 12.62 ± 1.88 | 12.61 ± 1.35 | 12.80 ± 1.40 | .764 |
| Hct | 39.05 ± 5.01 | 38.11 ± 3.60 | 38.43 ± 3.73 | .451 |
| Postoperative mean | ||||
| Hgb (g/dL) | 10.53 ± 1.28 | 11.10 ± 1.49 | 10.47 ± 1.24 | .027* |
| Hct | 32.45 ± 3.90 | 33.53 ± 4.19 | 31.47 ± 3.52 | .022* |
| Δ Hgb | 2.08 ± 1.34 | 1.50 ± 1.50 | 2.32 ± 0.98 | .001* |
| Δ Hct | 6.60 ± 3.96 | 4.57 ± 2.73 | 6.96 ± 2.81 | .001* |
| HBL (mL) | 275.75 ± 151.14 | 257.13 ± 61.14 | 339.50 ± 101.84 | .001* |
| VBL (mL) | 389.60 ± 186.2 | 331.52 ± 96.7 | 396.80 ± 114.8 | .001* |
| TBL (mL) | 665.66 ± 121.76 | 588.65 ± 100.18 | 736.35 ± 272.81 | .001* |
| Length of stay (d) | 6.01 ± 3.37 | 4.77 ± 1.84 | 5.48 ± 1.85 | .024* |
Bil. = Bilateral, BMI = body mass index, HBL = hidden blood loss, Hct = hematocrit, Hgb = hemoglobin, L = Left, R =Right, SD = standard deviation, TBL = total blood loss, VBL = visible blood loss.
*
One-way ANOVA analysis.