CLINICAL PREDICTION RULE FOR LUMBAR SPINAL STENOSIS
One clinical prediction rule for lumbar spinal stenosis has the following predictor variables.
• bilateral symptoms
• leg pain is greater than back pain
• pain is present during walking and standing
• pain is resolved with sitting
• age is greater than 48
Variables Sensitivity Specificity +LR -LR Post test
Probability
1 .96 .20 1.2 .19 44%
2 .68 .62 1.80 .51 55%
3 .29 .88 2.50 .80 63%
4 .06 .98 4.60 .95 76%
5 .01 1.0 ∞ .99 99%
