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Table 3 Morphometric parameters during fresh culture before slow freezing or vitrification for implanted and not implanted embryos in dataset 1. Differences between implanted and not implanted embryos were calculated for each parameter using linear regression (95% CI and p values)

From: Effect of day 3 embryo morphometrics and morphokinetics on survival and implantation after slow freezing-thawing and after vitrification-warming: a retrospective cohort study

Freezing method Parameter Implanted
Mean ± SD
Not implanted
Mean ± SD
Coefficient
implanted vs
not implanted
95% CI P
Slow freezing n 8 55a    
TCV, μm 3 771,018 ± 96,123 710,644 ± 83,177 54,663 −11,047 to 120,372 0.0992
N blastomeres 9.6 ± 3.0 7.9 ± 1.5 2.31 0.93 to 3.68 0.0020*
% Fragmentation 8.6 ± 7.1 14.1 ± 10.6 −5.31 −13.4 to 2.81 0.1906
% Symmetry 73.1 ± 4.9 73.9 ± 8.2 −1.00 −7.19 to 5.19 0.7418
Vitrification n 10 72b    
TCV, μm 3 738,603 ± 94,544 718,841 ± 1,037,167 12,538 −55,655 to 80,730 0.7120
N blastomeres 8.7 ± 2.8 8.1 ± 1.7 0.81 −0.47 to 2.10 0.2073
% Fragmentation 13.8 ± 8.4 14.6 ± 10.3 −0.85 −7.76 to 6.06 0.8049
% Symmetry 72.1 ± 9.7 72.2 ± 8.8 −0.29 −6.45 to 5.86 0.9234
  1. Random intercept correction was used to account for clustering
  2. *Statistically significant (at 5% alpha level) using the Bonferroni-Holm correction for multiple testing
  3. No morphometrics could be analyzed in compacted embryos
  4. a8/63 were compacted at evaluation
  5. b7/79 were compacted at evaluation