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The effect of change of practice (June 2010) on DVT rates
| Relevant Doppler scans ≤180 days from admission (%) | 278 | 43.8% | |
| Doppler scans performed pre-2010 | 150 | 54.0% | |
| No DVT | 125 | 83.3% | |
| DVT | 25 | 16.7% | |
| Ipsilateral DVT | 19 | 76.0% | p<0.009 |
| Contralateral DVT | 6 | 24.0% | |
| Doppler scans performed post-2010 | 128 | 46.0% | |
| No DVT | 112 | 87.5% | |
| DVT | 16 | 12.5% | |
| Ipsilateral DVT | 12 | 75.0% | p<0.046 |
| Contralateral DVT | 4 | 25.0% | |
| Difference between pre-2010 and post-2010 DVTs | p=0.082 |
DVT, deep vein thrombosis.
