Table 3. SSPE/ Large PE rates as % of positive AND total CTPA (small PE only as % of positive CTPA).
| SITE | All +ve PE on CTPA n | YIELD% +ve PE | SSPE n as (%)of +ve CTPA | Small PE n as (%) of +ve CTPA | Large PE n as (%) +ve CTPA | SSPE as %of all CTPA | Large PE as % of all CTPA |
|---|---|---|---|---|---|---|---|
| A | 82 | 15.8 | 13 (15.8) | 16 (19.5) | 45 (54.8) | 2.5 | 8.6 |
| B | 67 | 13.4 | 5 (7.5) | 14 (20.9) | 26 (38.8) | 1.0 | 5.2 |
| C | 80 | 16.0 | 6 (7.5) | 14 (17.5) | 50 (62.5) | 1.2 | 10.0 |
| D | 48 | 9.3 | 6 (12.5) | 25 (52.1) | 25 (52.1) | 1.1 | 4.8 |
| E | 84 | 16. 6 | 8 (9.4) | 56 (65.9) | 56 (65.9) | 1.6 | 11.0 |
| F | 112 | 25.3 | 6 (5.4) | 68 (60.7) | 68 (60.7) | 1.3 | 15.3 |
| G | 85 | 17.0 | 6 (7.1) | 35 (41.2) | 35 (41.2) | 1.2 | 7.0 |
| H | 36 | 10.0 | 1 (2.7) | 19(51.3) | 19 (51.3) | 0.3 | 5.2 |
| I | 52 | 16.0 | 2 (3.8) | 11 (21.1) | 22 (42.3) | 0.6 | 6.75 |
| J | 61 | 12.4 | 8 (13.1) | 11 (18) | 36 (59.0) | 1.6 | 7.3 |
| K | 172 | 16.3 | 22 (12.8) | 33 (19.2) | 103 (59.9) | 2.1 | 9.7 |
| L | 49 | 12.6 | 1 (2.0) | 5 (10.2) | 26 (53.1) | 0.2 | 5.2 |
| M | 53 | 9.8 | 2 (3.7) | 11 (20.4) | 31 (57.4) | 0.5 | 7.3 |
| N | 51 | 11.7 | 7 (13.7) | 29 (56.9) | 29 (56.9) | 1.1 | 6.6 |
| Totals(95% CI) | 1028 | 14.3%(13.8–15.4) | 179(8.8% CI:7.1–10.5) | 179(17.3% CI:15.0–19.6) | 571(55.2% CI:52.1–58.2) | 1.3%(CI 1.0–1.5) | 8.1%(CI 7.4–8.7) |
NB totals do not include all PE as intermediate (non-small-non large) PEs not included.