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Lack of relationship of age, BMI, Wells score [17], heart rate, respiratory rate to ratio of “interpretable” versus “uninterpretable” readings
| Odds Ratio (95% CI) | P–value | |
|---|---|---|
| Age (y) | 1.00 (0.99–1.03) | 0.25 |
| BMI | 0.99 (0.96–1.02) | 0.41 |
| Wells score—low (versus high) | 1.3 (0.51–3.3) | 0.82 |
| Wells score—moderate (versus high) | 1.47 (0.55–3.93) | 0.43 |
| Heart rate (beats/minute) | 1.00 (0.99–1.01) | 0.91 |
| Respiratory rate (breaths/minute) | 1.05 (0.99–1.12) | 0.10 |
