Table 3.

The average stenosis rate in each arterial group (%)

Case	under 100 μm	100 to 300 μm	over 300 μm
1	66.5 ± 36.3	48.8 ± 24.9	30.4 ± 21.8
2	25.5 ± 16.7	23.8 ± 23.1	2.5 ± 4.8
3	38.3 ± 19.6	39.7 ± 22.0	6.1 ± 9.7
4	31.7 ± 27.4	45.1 ± 31.8	28.7 ± 30.9
5	10.9 ± 25.6	17.9 ± 26.9	9.6 ± 15.5
6	19.4 ± 16.8	16.4 ± 21.0	6.5 ± 10.1

The pulmonary arteries were divided into three groups according to the Heath-Edwards classification, such as artery under 100 μm, 100 to 300 μm, or over 300 μm in diameter (designated the 'under 100-μm' group, the '100 to 300-μm' group, and the 'over 300-μm' group, respectively). This table surmised the average stenosis rate in each arterial group. Values are expressed as mean ± standard deviation.