Table 2 Distribution of 3D morphological parameters in different maternal age groups
All blastocysts | ||||||||
Morphological parameters | Maternal age | P value | ||||||
Group A ≤ 34 n = 130 | Group B 35–37 n = 48 | Group C ≥ 38 n = 48 | A vs. B | A vs. C | B vs. C | |||
Diameter (µm) (SD) | 185.7 (19.6) | 181.1 (29.6) | 181.8 (16.8) | 0.325 | 0.222 | 0.893 | ||
TE cell number (SD) | 117.1 (46.1) | 104.8 (59.1) | 95.9 (46.6) | 0.267 | 0.011 | 0.187 | ||
TE cell density (cell number /1000 µm2) (SD) | 1.1 (0.4) | 1.1 (0.5) | 1.0 (0.4) | 0.653 | 0.013 | 0.162 | ||
TE cell size variance (µm2) (SD) | 386.4 (525.2) | 582.7 (880.4) | 572.4 (802.5) | 0.042 | 0.033 | 0.952 | ||
ICM area (µm2) (SD) | 5590.0 (1995.3) | 5737.0 (2907.4) | 4985.1 (2273.7) | 0.747 | 0.086 | 0.161 | ||
Euploidy rate (%) | 66.2% | 52.1% | 37.5% | 0.086 | 0.001 | 0.154 | ||
Euploid blastocysts | ||||||||
Morphological parameters | Maternal age | Pvalue | ||||||
Group A ≤ 34 n = 86 | Group B 35–37 n = 25 | Group C ≥ 38 n = 18 | A vs. B | A vs. C | B vs. C | |||
Diameter (µm) (SD) | 190.2 (17.3) | 191.6 (27.9) | 189.6 (11.5) | 0.756 | 0.888 | 0.745 | ||
TE cell number (SD) | 142.2 (36.9) | 139.6 (44.1) | 139.4 (38.0) | 0.440 | 0.501 | 0.913 | ||
TE cell density (cell number /1000 µm2) (SD) | 1.3 (0.3) | 1.3 (0.4) | 1.3 (0.3) | 0.868 | 0.944 | 0.850 | ||
TE cell size variance (µm2) (SD) | 222.9 (112.1) | 233.6 (156.5) | 197.7 (93.4) | 0.703 | 0.374 | 0.390 | ||
ICM area (µm2) (SD) | 5795.5 (1828.3) | 6418.9.0 (3342.6) | 5559.1 (2622.3) | 0.379 | 0.646 | 0.369 | ||