Multivariable independent predictors for 6 month all-cause mortality
| Variables* | Adjusted hazard ratio (95% CI) | P value |
| Hypertension | 0.55 (0.34 to 0.90) | 0.02 |
| Hyperlipidaemia | 0.58 (0.23 to 1.47) | 0.25 |
| sPESI score (≥1) | 5.56 (2.79 to 11.1) | <0.001 |
| Day 1 sodium (≤138.5 mmol/L) | 2.19 (1.50 to 3.18) | <0.001 |
| Day 1 INR (≥1.2) | 1.76 (1.21 to 2.54) | 0.003 |
| Blood transfusion during admission | 1.79 (1.10 to 2.91) | 0.02 |
| Normal haemoglobin (Group 1) | 1.00 (reference) | – |
| Transient anaemia (Group 2) | 1.16 (0.51 to 2.66) | 0.72 |
| Acquired anaemia (Group 3) | 1.03 (0.53 to 2.01) | 0.92 |
| Persistent anaemia (Group 4) | 1.97 (1.26 to 3.09) | 0.003 |
*Only univariables with p<0.05 were included during multivariable modelling (see online supplementary table S4 for univariable analysis).
BP, blood pressure; INR, international normalised ratio; sPESI, simplified Pulmonary Embolism Severity Index (sPESI score incorporates age, history of malignancy, heart failure/chronic lung disease, heart rate ≥110 beats/min, systolic BP <100 mm Hg and oxyhaemoglobin saturation <90%).