Table 3.
The distribution of pulmonary cysts in pneumothorax and non-pneumothorax groups and corresponding P values
| Pneumothorax group [median (quartile)] | Non-pneumothorax group [median (quartile)] | P value | |
|---|---|---|---|
| Long-axis diameter of the largest cysts (mm) | 46 (28, 54) | 28 (12.5, 35.5) | 0.028 |
| Short-axis diameter of the largest cysts (mm) | 24 (16.8, 36.5) | 13 (7, 16.5) | 0.004 |
| Volume of the largest cysts (mm3) | 14,178.5 (4462.3, 35,189.5) | 1571 (356, 5438.5) | 0.005 |
| Total long-axis diameter of the cysts with long-axis diameter ≥ 20 mm (mm) | 149 (71.3, 515.3) | 156.5 (26, 403.3) | 0.691 |
| Total short-axis diameter of the cysts with long-axis diameter ≥ 20 mm (mm) | 77 (24.5, 319) | 96 (11.8, 209.8) | 0.691 |
| Total volume of the cysts with long-axis diameter ≥ 20 mm (mm3) | 25,539.62 (4818.8, 109,694.7) | 23,126.97 (2221.2, 61,020.9) | 0.760 |
| Right lung | |||
| Total number of the cysts in the right lung | 49 (25, 96.5) | 28 (8.5, 56.5) | 0.117 |
| Number of the cysts with long-axis diameter ≤ 10 mm in the right lung | 36 (20.8, 64.8) | 22 (8, 45) | 0.171 |
| Number of the cysts with long-axis diameter 10-20 mm in the right lung | 9 (2, 16) | 2 (0, 11) | 0.215 |
| Number of the cysts with long-axis diameter ≥ 20 mm in the right lung | 2 (1, 9.8) | 0 (0, 4) | 0.103 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≤ 10 mm in the right lung | 9 (6.5, 12.8) | 6 (3, 9.5) | 0.154 |
| Number of the mediastinal subpleural cysts with long-axis diameter 10-20 mm in the right lung | 3 (1.8, 6) | 1 (0, 5) | 0.375 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≥ 20 mm in the right lung | 1 (0, 6) | 0 (0, 1.5) | 0.182 |
| Number of the chest wall subpleural cysts with long-axis diameter ≤ 10 mm in the right lung | 12.5 (6.5, 29) | 9 (1.5, 15.5) | 0.177 |
| Number of the chest wall subpleural cysts with long-axis diameter 10-20 mm in the right lung | 1.5 (0.8, 4.3) | 0 (0, 3) | 0.226 |
| Number of the chest wall subpleural cysts with long-axis diameter ≥ 20 mm in the right lung | 1 (0, 1.3) | 0 (0, 0.5) | 0.191 |
| Number of the interlobar subpleural cysts with long-axis diameter ≤ 10 mm in the right lung | 6 (3.5, 10.3) | 1 (0, 7) | 0.223 |
| Number of the interlobar subpleural cysts with long-axis diameter 10-20 mm in the right lung | 0 (0, 3.3) | 0 (0, 1.5) | 0.420 |
| Number of the interlobar subpleural cysts with long-axis diameter ≥ 20 mm in the right lung | 1 (0, 2.3) | 0 (0, 1) | 0.292 |
| Left lung | |||
| Total number of the cysts in the left lung | 52 (17.8, 85.3) | 16 (8.5, 71.5) | 0.246 |
| Number of the cysts with long-axis diameter ≤ 10 mm in the left lung | 34.5 (14, 59.8) | 15 (4, 53.5) | 0.307 |
| Number of the cysts with long-axis diameter 10-20 mm in the left lung | 11.5 (3.5, 17) | 2 (0.5, 12) | 0.097 |
| The number of the cysts with long-axis diameter ≥ 20 mm in the left lung | 2 (0.8, 8) | 1 (0, 7) | 0.592 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≤ 10 mm in the left lung | 8 (3, 16.3) | 4 (2, 15) | 0.632 |
| Number of the mediastinal subpleural cysts with long-axis diameter 10-20 mm in the left lung | 3.5 (1.5, 5.5) | 1 (0, 5) | 0.500 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≥ 20 mm in the left lung | 1 (0, 2.5) | 0 (0, 4.5) | 0.823 |
| Number of the chest wall subpleural cysts with long-axis diameter ≤ 10 mm in the left lung | 11.5 (4.3, 19.5) | 7 (1, 21.5) | 0.485 |
| Number of the chest wall subpleural cysts with long-axis diameter 10-20 mm in the left lung | 4 (0, 5) | 2 (0, 3) | 0.145 |
| Number of the chest wall subpleural cysts with long-axis diameter ≥ 20 mm in the left lung | 0 (0, 3.5) | 0 (0, 1.5) | 0.408 |
| Number of the interlobar subpleural cysts with long-axis diameter ≤ 10 mm in the left lung | 3.5 (1, 5.5) | 0 (0, 4.5) | 0.194 |
| Number of the interlobar subpleural cysts with long-axis diameter 10-20 mm in the left lung | 1 (0, 2) | 0 (0, 1) | 0.153 |
| Number of the interlobar subpleural cysts with long-axis diameter ≥ 20 mm in the left lung | 0 (0, 0.3) | 0 (0, 1) | 0.791 |
| Both lungs | |||
| Total number of the cysts in both lungs | 135 (39, 169.5) | 44 (18, 138.5) | 0.057 |
| Number of the cysts with long-axis diameter ≤ 10 mm in both lungs | 81.5 (32.5, 135) | 36 (12.5, 100.5) | 0.161 |
| Number of the cysts with long-axis diameter 10-20 mm in both lungs | 17 (5.5, 33.5) | 5 (0.5, 23) | 0.116 |
| Number of the cysts with long-axis diameter ≥ 20 mm in both lungs | 5 (2, 19) | 1 (0, 11) | 0.065 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≤ 10 mm in both lungs | 21 (9.8, 27.5) | 12 (5, 27.5) | 0.324 |
| Number of the mediastinal subpleural cysts with long-axis diameter 10-20 mm in both lungs | 7.5 (3.5, 11.5) | 2 (0.5, 10) | 0.226 |
| Number of the mediastinal subpleural cysts with long-axis diameter ≥ 20 mm in both lungs | 1.5 (0.8, 8) | 1 (0, 5.5) | 0.398 |
| Number of the chest wall subpleural cysts with long-axis diameter ≤ 10 mm in both lungs | 26 (13.3, 45.8) | 16 (4, 38.5) | 0.215 |
| Number of the chest wall subpleural cysts with long-axis diameter 10-20 mm in both lungs | 5 (1, 10.3) | 2 (0, 5.5) | 0.189 |
| Number of the chest wall subpleural cysts with long-axis diameter ≥ 20 mm in both lungs | 1.5 (0, 6) | 0 (0, 2.5) | 0.248 |
| Number of the interlobar subpleural cysts with long-axis diameter ≤ 10 mm in both lungs | 9 (5.8, 17.3) | 2 (0, 8.5) | 0.061 |
| Number of the interlobar subpleural cysts with long-axis diameter 10-20 mm in both lungs | 1 (0.8, 5.3) | 0 (0, 3) | 0.054 |
| Number of the interlobar subpleural cysts with long-axis diameter ≥ 20 mm in both lungs | 1 (0, 3.3) | 0 (0, 2) | 0.234 |