Table 3.
Univariable analysis of factors associated with the risk of cardiopulmonary events.
| OR (95% CI) | |
|---|---|
| STOP-Bang | |
| STOP-Bang < 3 | 1 |
| STOP-Bang ≥ 3 | 1.89 (1.11–3.21) |
| STOP-Bang, alternative scoring model | |
| Low risk | 1 |
| Intermediate risk | 1.81 (0.99–3.32) |
| High risk | 2.19 (1.19–4.03) |
| Patient characteristics | |
| Age,/decade | 1.22 (0.96–1.54) |
| Male sex | 0.82 (0.50–1.34) |
| BMI, kg/m2 | 1.02 (0.95–1.09) |
| Smoking | |
| Never-smoker | 1 |
| Former smoker | 1.02 (0.60–1.75) |
| Current smoker | 0.76 (0.40–1.43) |
| Hospitalization | |
| Inpatients | 1 |
| Outpatients | 0.85 (0.21–3.47) |
| ASA physical status | |
| II | 1 |
| III | 1.51 (0.92–2.47) |
| Comorbidity | |
| Hypertension | 1.80 (1.11–2.91) |
| Diabetes mellitus | 0.85 (0.47–1.55) |
| Coronary heart disease | 0.64 (0.26–1.59) |
| Cerebrovascular disease | 0.13 (0.02–1.05) |
| COPD | 2.47 (1.39–4.39) |
| Asthma | 2.49 (0.77–8.06) |
| Chronic kidney disease | 4.11 (1.23–13.69) |
| Chronic liver disease | 0.13 (0.02–1.05) |
| Lung cancer | 1.40 (0.86–2.25) |
| Modified Mallampati score | |
| I | 1 |
| II | 1.37 (0.78–2.41) |
| III/IV | 0.68 (0.36–1.29) |
| Neck circumference, cm | 1.00 (0.94–1.08) |
| Baseline SBP, mm Hg | 1.00 (0.99–1.02) |
| Baseline heart rate,/10 beats/min | 1.29 (1.08–1.54) |
| Baseline SpO2, % | 0.67 (0.57–0.78) |
| Snoring under sedation | 1.24 (0.73–2.08) |
| Procedural characteristics | |
| Sedation time,/2 min | 1.12 (1.02–1.22) |
| Procedure time,/2 min | 1.18 (1.06–1.30) |
| Bronchial washing | 0.82 (0.48–1.41) |
| Endobronchial biopsy | 2.35 (1.29–4.28) |
| Attending bronchoscopist | |
| Pulmonologist A | 1 |
| Pulmonologist B | 0.86 (0.34–2.21) |
| Pulmonologist C | 0.86 (0.24–3.07) |
| Pulmonologist D | 0.43 (0.05–4.02) |
| Pulmonologist E | 0.86 (0.30–2.50) |
| Pulmonologist F | 1.15 (0.56–2.37) |
| Pulmonologist G | 1.51 (0.74–3.08) |
| Pulmonologist H | 0.67 (0.22–2.01) |
| Pulmonologist I | 0.81 (0.30–2.16) |
| Pharmacological characteristics | |
| Total dose of midazolam, mg | 0.89 (0.74–1.06) |
| Administration of 50 mcg of fentanyl | 0.85 (0.33–2.16) |
ASA American Society of Anesthesiologists, BMI body mass index, COPD chronic obstructive pulmonary disease, CI confidence interval, OR odds ratio, SBP systolic blood pressure, SpO2 pulse oximeter oxygen saturation.