We explored the independent risk factors associated with cases of spontaneous abortion in
infertile patients treated with human-assisted reproductive technology (ART) and
established a smooth curve fit and perform a threshold effect analysis can provide guidance
and a valuable reference for predicting the probability of spontaneous abortion. This was a
retrospective cohort study of 16,097 patients successfully conceived with ART in Shangqiu
First People's Hospital from June 2013 to December 2018. Overall, 2,378 (14.77%) had an …