Table 4. Demographic and clinical characteristics of patients who underwent thoracic fusion surgery.
| Thoracic fusion | |||
|---|---|---|---|
| Not transfused (n = 358) | Transfused (n = 167) | p Value | |
| Demographic characteristics | |||
| Age (y) | 59.5 ± 16.0 | 63.2 ± 12.2 | 0.006 |
| Sex (%) | 0.018 | ||
| Female | 52.5 | 63.5 | |
| Male | 47.5 | 36.5 | |
| Race (%) | 0.918 | ||
| White | 85.8 | 87.4 | |
| Black or African American | 5.0 | 5.4 | |
| American Indian or Native | 0.3 | 0 | |
| Native Hawaiian or Pacific Islander | 0.3 | 0 | |
| Asian | 1.7 | 1.8 | |
| Unknown | 6.9 | 5.4 | |
| Comorbidities | |||
| BMI (kg/m2) | 30.2 ± 7.7 | 29.7 ± 6.3 | 0.561 |
| Diabetes (%) | 0.181 | ||
| Type I | 6.7 | 6.6 | |
| Type II | 7.8 | 10.8 | |
| Smoking (%) | 24.6 | 16.8 | 0.040 |
| Dyspnea (%) | 0.578 | ||
| At rest | 1.7 | 0.6 | |
| Moderate exertion | 7.5 | 8.4 | |
| COPD (%) | 4.2 | 7.2 | 0.148 |
| CHF (%) | 0.8 | 0.6 | 0.769 |
| Dialysis (%) | 0 | 0.6 | 0.143 |
| Hypertension (%) | 56.7 | 62.9 | 0.181 |
| Bleeding disease (%) | 3.9 | 3.6 | 0.859 |
| Steroids (%) | 7.0 | 4.8 | 0.335 |
| ASA class (%) | 0.010 | ||
| 1: no disturbance | 3.6 | 0.6 | |
| 2: mild disturbance | 32.1 | 23.4 | |
| 3: severe disturbance | 64.3 | 76.1 | |
| Functional health status prior surgery (%) | 0.628 | ||
| Independent | 90.0 | 89.2 | |
| Partially dependent | 8.7 | 10.2 | |
| Totally dependent | 1.4 | 0.6 | |
| Clinical characteristics | |||
| Multiple level surgery (%) | 58.4 | 82.6 | <0.001 |
| Operation time (min) | 219.0 ± 118.8 | 335.3 ± 144.2 | <0.001 |
| Elective surgery (%) | 76.3 | 76.1 | 0.966 |
| Inpatient (%) | 98.3 | 100 | 0.092 |
| Return to operating room (%) | 7.3 | 9.0 | 0.494 |
| Preoperative hematocrit | 39.3 ± 5.3 | 37.2 ± 4.7 | <0.001 |
| Preoperative platelet count | 253.8 ± 95.7 | 262.1 ± 90.5 | 0.348 |
| Preoperative WBC | 8.2 ± 3.7 | 7.7 ± 3.1 | 0.160 |
| Preoperative serum creatinine | 0.87 ± 0.54 | 0.86 ± 0.29 | 0.898 |
| Preoperative BUN | 15.9 ± 7.4 | 17.4 ± 7.5 | 0.030 |
| Preoperative serum sodium | 138.5 ± 3.0 | 138.6 ± 3.1 | 0.83 |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; BUN, blood urea nitrogen; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; WBC, white blood count.