Table 4.

Differences of the right ventricular wall thickness in the 100 to 300 μm zone

	Below the lower limit of the 95% CI	Above the lower limit of the 95% CI
Case number	31	22
The mean of RV (mm)	2.94	3.44

Legend: The 95% confidential interval (CI) for stenosis rates of the pulmonary artery from 100 to 300 μm zone was 4.87 to 12.14%. In this zone, 31 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 = 0.048, t test).

RV: Right ventricular wall thickness.