| Craniocaudal direction | Right-to-left direction | ||||
---|---|---|---|---|---|---|
 | Upper lung field | Upper lung field | ||||
 | B – C†| B – D†| C – D†| B – C†| B – D†| C – D†|
≤ - 3 mm | 0 | 0 | 1 | 0 | 0 | 0 |
- 2 ≤, ≤ 2 mm | 24 | 24 | 28 | 27 | 27 | 29 |
≥ 3 mm | 5 | 5 | 0 | 2 | 2 | 0 |
p* | 0.0044 | 0.0046 | - | 0.024 | 0.029 | 0.71 |
 | Lower lung field | Lower lung field | ||||
 | B – C†| B – D†| C – D†| B – C†| B – D†| C – D†|
≤ - 3 mm | 2 | 2 | 3 | 0 | 0 | 0 |
- 2 ≤, ≤ 2 mm | 14 | 14 | 19 | 24 | 22 | 26 |
≥ 3 mm | 10 | 10 | 4 | 2 | 4 | 0 |
p* | 0.032 | 0.0071 | 0.48 | 0.016 | 0.0051 | 0.043 |