Table 1. Clinical and embryonic characteristics.
Group -1 Group 0 Group +1 Grupo +2 Group 3→3
N 21 188 412 101 31
Age 41.00
[38.00-44.50]
40.00
[36.00-43.00]
39.00
[36.00-43.00]
40
[37.00-43.00]
42.00
[38.50-44.50]
Body Mass Index (KG/m2) 26.00
[25.80-29.50]
24.70
[22.45-27.50]
24.50
[21.90-28.20]
23.60
[22.05-25.90]
25.20
[23.10-26.60]
KIDScore / IDAScore 8.35
[7.95-8.72]
8.20
[7.20-8.70]
8.10
[7.00-8.80]
7.80
[6.55-8.40]
8.35
[7.52-8.93]
Endometrium (mm) 9.60
[9.00-10.90]
9.60
[8.30-11.47]
9.10
[8.00-10.70]
9.20
[7.67-10.03]
9.90
[8.57-12.00]
Morphology %(n) (Gardner)
Excellent (AA)
Good (AB, BA)
Fair (BB)
Poor (AC, BC, CA, CB, CC)
33.33(9)
50.00(6)
20.00(5)
0.00(1)
33.82(68)
50.00(62)
44.19(43)
26.67(15)
54.29(140)
54.96(131)
48.18(110)
67.74(31)
55.26(38)
63.16(38)
66.67(6)
47.37(19)
76.92(13)
72.72(11)
50.00(6)
100.00(1)
Transfer Day %(n)
Day 5
Day 6
33.33(15)
33.33(6)
45.32(139)
30.43(43)
54.51(255)
52.70(157)
64.71(52)
48.98(49)
75.00(24)
57.14(7)
Type of oocyte %(n)
Own oocyte
Donated oocyte
57.14(7)
21.43(14)
44.94(89)
36.09(99)
53. 81(200)
07(212)
54.55(56)
60.00(45)
88.89(9)
68.18(22)

Numerical variables are presented as median and interquartile range [P25-P75]. Embryo morphology (Gardner criteria), transfer day, and oocyte source are shown with clinical pregnancy rates expressed as percentages, and the number of cases in each subgroup indicated in parentheses (% [n]).