Comparison of SDSG and CARDS classifications for L5/S1 lumbar degenerative spondylolisthesis: an independent inter- and intra-observer agreement study

Table 6 Agreement analysis by three items of CARDS classification

Items	Inter-observer reliability		Intra-observer reproducibility
Items	Agreement (%)	K	Agreement (%)	K
Disk space height	76.5%	0.618	90.2%	0.762
Vertebral translation	69.2%	0.477	87.6%	0.749
Kyphotic alignment	88.4%	0.725	94.7%	0.855

ISSN: 1749-799X