Variable | Normal persons | Marfan patients | P 1 |
---|---|---|---|
 | (N = 123) | (N = 98) |  |
MPA diameter (cm) | 2.1 ± .3 (1.1–3.1) | 3.1 ± .7 (1.9–4.7) | <.001 |
MPA dilatation (diameter > 2.6 cm) | 6 (4.9%) | 68 (69.4%) | <.001 |
MPA aneurysm (diameter > 4.0 cm) | 0 | 15 (15.3%) | <.001 |
MPA diameter > 6.0 cm | 0 | 0 |  |
MPA ratio2 | .7 ± .19 (.3–1.2) | .8 ± .21 (.5–1.5) | .001 |
MPA ratio > 1.052 | 6 (5.8%) | 8 (10.5%) | .161 |