Table 3 Assessment of clinical pre-test probability and RGS
From: Finding an alternative diagnosis does not justify increased use of CT-pulmonary angiography
2000 | 2005 | 2008 | Total | p | |
|---|---|---|---|---|---|
n | 74 | 383 | 393 | 850 | |
Pre-test probability of PE documented (%) | 4.1 | 1.6 | 3.1 | 2.4 | 0.48 |
Calculated Revised Geneva Score (mean ± SD) | 5.7 ± 2.9 | 5.3 ± 2.5 | 5.4 ± 3.0 | 5.4 ± 2.8 | 0.42 |
Low probability (%) | 25.7 | 24.5 | 28.8 | 26.6 | 0.01 |
Intermediate probability (%) | 70.3 | 74.4 | 66.2 | 70.2 | |
High probability (%) | 4.1 | 1 | 5.1 | 3.2 |