Soft catheters showed no clear difference in live birth rate compared with firm catheters (low certainty).
It is very uncertain whether soft catheters changes pregnancy rate compared with firm catheters (very low certainty).
It is very uncertain whether soft catheters changes miscarriage per woman compared with firm catheters (very low certainty).
It is very uncertain whether TLS utilising embryo selection software changes miscarriage compared with conventional incubation and assessment (very low certainty).
It is very uncertain whether TLS utilising embryo selection software changes clinical pregnancy compared with conventional incubation and assessment (very low certainty).
It is very uncertain whether TLS utilising embryo selection software changes live birth or ongoing pregnancy compared with TLS with conventional morphological assessment of still TLS images (very low certainty).
It is very uncertain whether TLS utilising embryo selection software changes miscarriage compared with TLS with conventional morphological assessment of still TLS images (very low certainty).
The review found no eligible studies for this question.
It is very uncertain whether TLS utilising embryo selection software changes clinical pregnancy compared with TLS with conventional morphological assessment of still TLS images (very low certainty).
It is very uncertain whether TLS utilising embryo selection software changes live birth or ongoing pregnancy compared with conventional incubation and assessment (very low certainty).