Table 1.
Descriptive statistics of preoperative and intraoperative variables of study participants (n=106)
| Patient characteristics | Total patient sample |
|---|---|
| Demographics | |
| Age, years | 15.4 (2.0) |
| Sex, n (%) | |
| Female | 81 (76) |
| Male | 25 (24) |
| Preoperative SRS-30 variables, n (%) | |
| Pain in last 6 months | |
| None | 9 (9) |
| Mild | 34 (32) |
| Moderate to severe | 62 (59) |
| Pain in last 1 month | |
| None | 13 (12) |
| Mild | 29 (27) |
| Moderate to severe | 64 (61) |
| Back pain at rest | |
| No | 17 (16) |
| Yes | 89 (84) |
| Current level of activity | |
| Full activities without restriction | 45 (42.5) |
| Light to moderate activity | 45 (42.5) |
| No activity | 16 (15) |
| Missed school/work days due to backpain in last 3 months | |
| 0 | 75 (72) |
| 1-3 | 17 (16) |
| 4 or more | 13 (12) |
| Medications for pain, n (%) | |
| None | 74 (70) |
| Yes | |
| Non-opioids | 26 (24) |
| Opioids | 6 (6) |
| Anesthetic/Analgesia during surgery | |
| Propofol mg/kg | 52.5 (12.4) |
| Remifentanil, μg/kg | 45.6 (22.9) |
| Sufentanil, μg/kg | 0.15 (0.36) |
| Fentanyl, μg/kg | 0.30 (0.79) |
| Dexamethasone mg/kg | 0.11 (0.04) |
| Ketamine mg/kg | 0.70 (0.57) |
| Intrathecal morphine, μg/kg | 5.40 (2.97) |
| Total intraoperative opioids, mg/kg | 36.1 (17.0) |
| Surgical variables | |
| Surgery length, minutes | 264 (76.4) |
| Blood loss, mL | 761 (441) |
| Number of fused vertebrae | 10.7 (2.50) |
Notes: Data are presented as mean±SD in parenthesis, unless otherwise stated.
Abbreviation: SRS-30, Scoliosis Research Society Questionnaire: Version 30.