a decreasing trendP < 0.001
Conversely, body mass index (BMI), the proportion of patients with primary infertility, the proportion of blastocyst transfers, and the proportion of first IVF-FET cycles exhibited a decreasing trend (all P < 0.001).
Conversely, body mass index (BMI), the proportion of patients with primary infertility, the proportion of blastocyst transfers, and the proportion of first IVF-FET cycles exhibited a decreasing trend (all P < 0.001).