Table 5. Univariate comparisons of technical factors used during percutaneous transluminal coronary angioplasties according to the practitioners.
| A (n=52) |
B (n=30) |
C (n=41) |
|||||
| Factors | Mean | Q1–Q3 | Mean | Q1–Q3 | Mean | Q1–Q3 | p-value |
| Clinical factors | |||||||
| BMI (kg m–2) | 27.4 | 24.4–30.1 | 27.7 | 25.0–29.4 | 28.2 | 25.0–30.4 | 0.75 |
| No dilatation material | 3.8 | 2.0–6.0 | 3.2 | 1.0–5.0 | 3.4 | 1.0–5.0 | 0.10 |
| Technical factors | |||||||
| Length of fluoroscopy (min) | 11.3 | 5.9–16.1 | 12.0 | 5.4–15.8 | 10.9 | 6.7–15.3 | 0.63 |
| Number of runs | 17.1 | 12.0–22.0 | 15.5 | 9.0–23.0 | 16.8 | 10.0–22.0 | 0.07 |
| Number of cine frames | 619 | 368–746 | 1074 | 557–1489 | 1183 | 618–1689 | <0.0001 |
| % with only “low dose” mode at 12.5 fr s–1 | 40.4 | 80.0 | 41.5 | <0.01 | |||
| % without any “low dose” mode at 25 fr s–1 | 100.0 | 100.0 | 65.9 | – | |||
| % without any “high dose” mode at 12.5 fr s–1 | 53.9 | 96.7 | 87.8 | <0.0001 | |||
| % without any “high dose” mode at 25 fr s–1 | 92.3 | 93.3 | 87.8 | 0.66 | |||
| % without any collimation | 0.0 | 63.3 | 19.5 | – | |||
| % without any 14 cm intensifier field | 80.8 | 80.0 | 68.3 | 0.32 | |||
| % without any 23 cm intensifier field | 78.9 | 86.7 | 82.9 | 0.66 | |||
fr, frames; Q1–Q3: first to third quartile.