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Table 2 Inter-observer agreement for general image quality assessment of the lumbar spine (> 4 wks) n = 50

From: European guidelines on quality criteria for diagnostic radiographic images of the lumbar spine – an intra- and inter-observer reproducibility study

Lumbar projection Agreement Expected Agreement Kappa (k) Standard Error Z Probability >Z
AP/PA 86.00% 66.00% 0.5882 0.1303 4.51 0.0000
Lat. L1-L4 86.00% 51.64% 0.7105 0.1370 5.19 0.0000
Lat. L5-S1 88.00% 60.76% 0.6942 0.1338 5.19 0.0000
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Chiropractic & Manual Therapies

ISSN: 2045-709X