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 |