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Table 5 LB+ rates (%) in each KS-D5 group stratified by SART maternal age

From: Comparing prediction of ongoing pregnancy and live birth outcomes in patients with advanced and younger maternal age patients using KIDScore™ day 5: a large-cohort retrospective study with single vitrified-warmed blastocyst transfer

  1.0–3.6* 3.7–6.0* 6.1–8.0* 8.1–9.9* No. of cycles P value for
trend test
<  35 21.4 30.2 40.5 46.4 287 <  0.05
35–37 16.7 31.3 35.8 43.1 401 < 0.05
38–40 10.6 12.0 28.1 31.8 611 < 0.05
41–42 5.9 8.7 14.9 27.8 489 < 0.05
≥ 43 0.9 4.0 5.9 19.0 681 < 0.05
Total 7.8 13.0 22.8 33.6 2469 < 0.05
  1. LB+ Live birth positive, KS-D5 KIDScore Day5
  2. * An asterisk indicates that the LB+ rates significantly decreased when maternal age increased for each column according to the Cochran-Armitage trend test (P < 0.05)