Table 3.
Factors associated with high risk for pulmonary embolism in patients with acute exacerbation of chronic obstructive pulmonary disease by univariate analysis
| Patient characteristic (n) | OR | 95% CI (lower limit-upper limit) | P |
|---|---|---|---|
| Previous history of VTE | 3.79 | 1.07-13.39 | 0.050 |
| Hemoptysis | 7.40 | 1.88-29.22 | 0.005 |
| Chest pain | 20.88 | 2.61-167.10 | 0.001 |
| Tachypnea (respiratory rate >30/min) | 31.72 | 3.93-255.57 | 0.001 |
| Hypotension (SBP <100 mmHg) | 40.24 | 4.96-326.18 | 0.001 |
| Tachycardia (pulse >100 bpm) | 31.72 | 3.93-255.57 | 0.001 |
| PCO2 (<45 mmHg) | 69.17 | 13.49-354.58 | 0.001 |
| pH >7.45 | 75.16 | 14.81-381.293 | 0.001 |
| Platelet (<150,000 mm3) | 10.65 | 2.23-50.67 | 0.001 |
SBP: Systolic blood pressure, VTE: Venous thromboembolism, OR: Odds ratio, CI: Confidence interval