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

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

	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

LB+ Live birth positive, KS-D5 KIDScore Day5
* 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)

ISSN: 1477-7827