Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Aug 17;9:927642. doi: 10.3389/fcvm.2022.927642

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2022 Chen, Zhu, Liu, Wu, Chai, Tao, Kong, Li and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Meta-analysis of secondary outcomes of interest (continuous variables). Both the random-effects model (D + L) and fixed-effects model (I–V) have been presented in the Forrest plot. Based on heterogeneity examination, radiation doses, fluoroscopic time, implantation depth, and mean gradient were tested using the fixed-effects model, while the length of hospital stay should be compared using a random-effects model. The pooled analyses suggested that a higher implantation depth was achieved by using the COP technique, while radiation doses were higher in the COP group. The bars represented a 95% CI.