From: The correlation between endometrial thickness and pregnancy outcomes in fresh ART cycles with different age groups: a retrospective study
Variables
Group 1, N = 99
Group 2, N = 444
Group 3, N = 362
Group 4, N = 95
p value
Chemical pregnancy (%)
30 (30.3)
144 (32.5)
94 (26)
9 (9.5)
0.001*
Clinical pregnancy (%)
27 (28.2)
134 (30.1)
76 (21.5)
8 (8.5)