Table 5.

Differences of the right ventricular wall thickness in the over 300 μm zone

	Below the lower limit of the 95% CI	Above the lower limit of the 95% CI
Case number	33	18
The mean of RV (mm)	2.91	3.55

Legend: The 95% confidential interval (CI) for stenosis rates of the pulmonary artery over 300 μm zone was 2.71 to 6.71%. In this zone, 33 cases were less than the lower limit of the 95% CI. In addition, the right ventricular wall thickness was significantly greater among cases above the lower limit of the 95% CI (p = 0.013, t test).

RV: Right ventricular wall thickness.