Table 3.
Numerical data of the growing left lung.
| Age [weeks] | n | Left lung (all parameters are expressed in millimeters [mm]) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Transverse diameter | Sagittal diameter | Height | Base circumference |
Anterior margin length |
Posterior margin length |
||||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||
| 16 | 2 | 9.06 | 1.88 | 20.45 | 2.26 | 16.07 | 0.56 | 45.23 | 0.49 | 22.90 | 2.50 | 24.12 | 0.50 |
| 17 | 8 | 11.60 | 1.74 | 21.24 | 2.35 | 16.27 | 1.80 | 48.83 | 13.75 | 25.78 | 2.18 | 24.95 | 4.06 |
| 18 | 10 | 11.71 | 1.70 | 22.84 | 3.74 | 17.91 | 2.40 | 55.30 | 7.08 | 28.08 | 4.91 | 28.76 | 7.80 |
|
| |||||||||||||
| 16–18 | 20 | 11.40(a) | 1.82 | 21.96(a) | 3.13 | 17.07(a) | 2.16 | 51.71(a) | 10.40 | 26.64(a) | 4.05 | 26.77(a) | 6.26 |
|
| |||||||||||||
| 19 | 6 | 15.56 | 2.52 | 28.73 | 3.80 | 19.54 | 1.52 | 69.38 | 9.61 | 33.26 | 4.42 | 33.09 | 3.28 |
| 20 | 14 | 13.28 | 1.87 | 27.20 | 3.47 | 18.47 | 1.82 | 64.75 | 7.02 | 30.93 | 2.23 | 30.02 | 2.16 |
| 21 | 7 | 16.31 | 1.57 | 29.80 | 3.88 | 21.60 | 2.09 | 73.91 | 8.74 | 37.26 | 4.52 | 33.90 | 1.20 |
|
| |||||||||||||
| 19–21 | 27 | 14.57(b) | 2.34 | 28.22(b) | 3.68 | 19.52(b) | 2.21 | 68.29(b) | 8.72 | 33.09(b) | 4.26 | 31.71(b) | 2.83 |
|
| |||||||||||||
| 22 | 5 | 17.96 | 3.25 | 33.83 | 5.56 | 23.59 | 3.28 | 78.48 | 14.38 | 36.16 | 4.56 | 38.09 | 4.37 |
| 23 | 6 | 16.46 | 1.86 | 34.84 | 1.31 | 24.02 | 3.23 | 83.78 | 7.28 | 37.08 | 8.10 | 37.85 | 4.56 |
| 24 | 6 | 18.05 | 2.32 | 36.14 | 3.94 | 26.67 | 1.84 | 85.94 | 16.17 | 42.64 | 5.92 | 39.16 | 3.87 |
| 25 | 3 | 20.10 | 6.94 | 37.89 | 4.47 | 25.37 | 4.87 | 78.10 | 35.32 | 45.27 | 2.17 | 41.54 | 4.75 |
|
| |||||||||||||
| 22–25 | 20 | 17.86(c) | 3.32 | 35.44(c) | 3.88 | 24.91(c) | 3.18 | 82.25(c) | 16.40 | 39.75(c) | 6.67 | 38.86(c) | 4.49 |
Note: between the three age groups of 16–18, 19–21, and 22–25 weeks, the means marked by letters (a), (b), and (c) in every column differ significantly: for transverse diameter: (a) versus (b) p < 0.001, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001; for sagittal diameter: (a) versus (b) p < 0.001, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001; for height: (a) versus (b) p < 0.01, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001; for base circumference: (a) versus (b) p < 0.001, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001; for length of anterior margin: (a) versus (b) p < 0.001, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001; for length of posterior margin: (a) versus (b) p < 0.01, (a) versus (c) p < 0.001, and (b) versus (c) p < 0.001.