Table 1 Patient characteristics and demographics identify risk of OSA based on modified STOP-Bang questionnaire
From: Modified STOP-Bang for predicting perioperative adverse events in the Thai population
| Variable |
Low risk for OSA (n = 210) |
High risk for OSA (n = 190) | P-value |
|---|---|---|---|
| Age (years), mean ± SD | 47.3 ± 13.80 | 61.1 ± 12.6 | < 0.001 |
| Sex, n (%) | < 0.001 | ||
| • Male | 31 (14.8%) | 100 (52.6%) | |
| • Female | 179 (85.2%) | 90 (47.4%) | |
| BMI (kg/m2), mean ± SD | 23.2 ± 3.6 | 26.8 ± 5.1 | < 0.001 |
| Preoperative oxygen saturation (%) | 98.7 ± 1.6 | 98.0 ± 2.0 | 0.001 |
| Underlying disease, n (%) | |||
| • Diabetes mellitus | 20 (9.5%) | 51 (26.8%) | < 0.001 |
| • Hypertension | 41 (19.5%) | 131 (68.9%) | < 0.001 |
| • Dyslipidemia | 35 (16.7%) | 54 (28.6%) | < 0.001 |
| • Coronary disease | 1 (0.5%) | 5 (2.6%) | 0.077 |
| • History of congestive heart failure | 0 (0%) | 1 (0.5%) | 0.293 |
| • History of arrythmia | 4 (1.9%) | 6 (3.2%) | 0.423 |
| • Pulmonary disease | 5 (2.4%) | 6 (3.2%) | 0.72 |
| • Renal disease | 21 (10%) | 24 (12.7%) | 0.74 |
| Operation type, n (%) | |||
| • Explore laparotomy | 68 (32.4%) | 46 (24.1%) | 0.025 |
| • Orthopedic surgery | 37 (17.5%) | 42 (22.3%) | |
| • Laparoscopic surgery and endoscopic surgery | 43 (20.3%) | 46 (24.5%) | |
| • Breast surgery, Excision or Repair hernia | 44 (20.7%) | 27 (19.9%) | |
| • Others | 20 (9.4%) | 17 (9.0%) | |
| Anesthetic technique and operation time | |||
| • GA, n (%) | 132 (69.5%) | 134 (63.8%) | 0.032 |
| • GA combined regional anesthesia, n (%) | 18 (8.6%) | 28 (14.7%) | 0.054 |
| o GA + Interscalene brachial plexus block | 12 | 15 | |
| o GA + Epidural analgesia | 6 | 13 | |
| • Spinal anesthesia, n (%) | 40 (19.1%) | 48 (25.3%) | 0.134 |
| • Operation Time, median (IQR) | 160 (110–210) | 165 (105–230) | 0.646 |
| Total fluid & Estimated blood loss | |||
| • Estimate blood loss (ml), median (IQR) | 100 (20–250) | 50 (20–300) | 0.022 |
| • Total IV fluid (ml), median (IQR) | 1100 (650–1850) | 1010 (700–2000) | 0.463 |
| • Blood component, n (%) | 10 (4.8%) | 8 (4.2%) | 0.791 |
| Post-operative outcomes | |||
| • Post-operative ICU admission, n (%) | 5 (2.4%) | 15 (7.9%) | 0.007 |
| • Post-operative unplanned ICU admission, n (%) | 0 | 3 (1.6%) | 0.106 |
| • 30-days mortality, n (%) | 0 | 0 | N/A |
| • Length of hospital stay (days), median (IQR) | 4 (3, 5) | 4 (3, 6) | 1.00 |