Table 7 Comparison of Radiological Features Among Four groups of Flow-volume Curve
A group (n = 47) | B group (n = 25) | C group (n = 46) | D group (n = 12) | p value | |
|---|---|---|---|---|---|
Total lung area, L | 3.64 (3.19–4.40) | 3.56 (2.98–3.96) | 3.43 (2.72–3.99) | 3.67 (3.21–4.86) | 0.270 |
HA, ml | 81 (44–157) | 84 (43–141) | 124 (75–193) | 101 (72–130) | 0.085 |
%HA, % | 2.4 (1.2–4.0) | 2.3 (1.2–4.5) | 4.2 (2.1–6.8) | 3.1 (2.2–4.1) | 0.046 |
sLAA, ml | 207 (110–375) | 180 (135–337) | 203 (69–372) | 389 (115–553) | 0.264 |
%sLAA, % | 6.1 (3.4–8.0) | 5.7 (4.3–8.0) | 5.6 (2.7–9.4) | 9.1 (3.5–15.7) | 0.291 |
Upper/peripheral %HA, % | 1.2 (0.6–2.9) | 1.4 (0.5–2.7) | 3.1 (1.3–5.5) | 1.5 (1.1–2.5) | 0.005 |
Upper/central %HA, % | 0.1 (0.0–0.4) | 0.1 (0.0–0.2) | 0.2 (0.1–1.0) | 0.1 (0.0–0.2) | 0.069 |
Lower/peripheral %HA, % | 4.7 (2.9–7.4) | 4.5 (2.6–7.7) | 7.1 (3.9–11.5) | 5.8 (4.6–6.8) | 0.131 |
Lower/central %HA, % | 0.7 (0.2–2.1) | 0.9 (0.2–2.6) | 1.7 (0.6–4.1) | 0.8 (0.3–3.3) | 0.113 |
Upper/peripheral %sLAA, % | 6.8 (4.2–9.7) | 6.7 (5.9–10.9) | 6.0 (3.7–6.0) | 10.1 (4.0–14.1) | 0.297 |
Upper/central %sLAA, % | 7.1 (4.7–11.1) | 7.7 (6.0–13.4) | 6.5 (3.6–11.9) | 10.2 (3.3–17.5) | 0.529 |
Lower/peripheral %sLAA, % | 4.9 (2.5–7.7) | 4.4 (3.2–6.8) | 4.6 (2.3–7.6) | 7.7 (4.2–12.8) | 0.151 |
Lower/central %sLAA, % | 5.0 (3.0–7.6) | 4.7 (3.7–7.9) | 5.8 (2.5–8.8) | 8.5 (3.4–16.6) | 0.304 |