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Table 4: Rs for lumbar foraminal stenosis for patients younger than 50 years of age^{^a}
Observer L System vs W System L System vs PNM W System vs PNM
Reader 1 0.973 0.711 0.695
Reader 2 0.985 0.511 0.503

Note:—L system indicates Lee system; W system, Wildermuth system.

 ↵a The level of correlation significance was .01.