Table 2.
Comparison of presenting features, physiology, ECG and chest x‐ray between women with and without PE
| Presenting feature | Women with PE | Women without PE | Univariate odds ratio (95% CI) | Univariate P‐Value | Multivariate odds ratio (95%CI) | Multivariate P‐value |
|---|---|---|---|---|---|---|
| Presenting feature: Pleuritic chest pain | 94 (51.93%) | 137 (52.90%) | 0.96 (0.66–1.41) | 0.842 | 1.30 (0.69–2.45) | 0.418 |
| Presenting feature: Non‐pleuritic chest pain | 38 (20.99%) | 47 (18.15%) | 1.20 (0.74–1.93) | 0.457 | 1.23 (0.57–2.67) | 0.596 |
| Presenting feature: Shortness of breath at rest | 97 (53.59%) | 157 (60.62%) | 0.75 (0.51–1.10) | 0.142 | 0.70 (0.40–1.24) | 0.223 |
| Presenting feature: Shortness of breath on exertion | 93 (51.38%) | 125 (48.26%) | 1.13 (0.77–1.66) | 0.52 | 1.60 (0.91–2.81) | 0.104 |
| Presenting feature: Haemoptysis | 13 (7.18%) | 10 (3.86%) | 1.93 (0.83–4.61) | 0.129 | 2.90 (0.84–10.1) | 0.093 |
| Presenting feature: Cough | 16 (8.84%) | 23 (8.88%) | 1.00 (0.50–1.93) | 0.988 | 0.38 (0.12–1.21) | 0.102 |
| Presenting feature: Syncope | 9 (4.97%) | 7 (2.70%) | 1.88 (0.69–5.36) | 0.218 | 2.79 (0.57–13.5) | 0.203 |
| Presenting feature: Palpitations | 24 (13.26%) | 30 (11.58%) | 1.17 (0.65–2.07) | 0.598 | 1.44 (0.53–3.87) | 0.472 |
| Presenting feature: Other | 62 (34.25%) | 90 (34.75%) | 0.98 (0.65–1.46) | 0.914 | 0.61 (0.32–1.17) | 0.140 |
| Temperature >37.5 | 14 (7.73%) | 7 (2.70%) | 3.02 (1.23–8.11) | 0.02 | ‐ | ‐ |
| Temperature (Continuous) | 1.75 (1.22–2.57) | 0.003 | 2.22 (1.26–3.91) | 0.006 | ||
| Diastolic <50 mmHg | 4 (2.21%) | 2 (0.77%) | 2.90 (0.56–21.1) | 0.221 | ‐ | ‐ |
| Diastolic (Continuous) | 1.01 (0.99–1.03) | 0.256 | 1.03 (0.99–1.06) | 0.122 | ||
| Systolic <90 mmHg | 3 (1.66%) | 1 (0.39%) | 4.35 (0.55–88.3) | 0.205 | ‐ | ‐ |
| Systolic (Continuous) | 0.99 (0.98–1.01) | 0.322 | 0.96 (0.93–0.99) | 0.004 | ||
| O2 Saturation <94% | 27 (14.92%) | 10 (3.86%) | 4.37 (2.12–9.71) | <0.001 | ‐ | ‐ |
| O2 Saturation (Continuous) | 0.85 (0.78–0.92) | <0.001 | 0.87 (0.78–0.97) | 0.012 | ||
| Respiratory Rate >24/min | 18 (9.94%) | 25 (9.65%) | 1.03 (0.54–1.95) | 0.919 | ‐ | ‐ |
| Respiratory Rate (Continuous) | 1.00 (0.96–1.04) | 0.948 | 0.94 (0.88–1.02) | 0.136 | ||
| Heart rate >100/min (110/min 3rd trimester) | 55 (30.39%) | 72 (27.80%) | 1.13 (0.75–1.72) | 0.556 | ‐ | ‐ |
| Heart Rate (Continuous) | 1.01 (0.99–1.02) | 0.126 | 1.01 (0.99–1.03) | 0.153 | ||
| Clinical signs of DVT | 23 (12.71%) | 23 (8.88%) | 1.49 (0.81–2.77) | 0.199 | 1.63 (0.61–4.35) | 0.325 |
| PE related ECG abnormality | 4 (2.21%) | 8 (3.09%) | 0.71 (0.19–2.29) | 0.579 | 0.823 (0.40–1.69) | 0.596 |
| PE related chest x‐ray abnormality | 30 (16.57%) | 18 (6.95%) | 15.20 (2.82–282.0) | 0.01 | 13.4 (1.39–130.2) | 0.025 |
| Other chest x‐ray abnormality | 9 (4.97%) | 1 (0.39%) | 2.82 (1.53–5.33) | 0.001 | 2.49 (0.93–6.69) | 0.069 |