Systematic Reviews
Copyright ©The Author(s) 2015.
World J Meta-Anal. Apr 26, 2015; 3(2): 97-117
Published online Apr 26, 2015. doi: 10.13105/wjma.v3.i2.97
Figure 8
Figure 8 Frequency of study quality based on six different types of potential bias. High quality, low bias (76%-100% quality items within category present), moderate quality and moderate bias (51%-75% items present), low quality, high bias (0%-50% items present).