Purpose: Identify signs and symptoms indicative of lumbar spinal stenosis.

Stage of CPR Development: Derivation.

Rule:

1. Bilateral symptoms
2. Leg pain > back pain
3. Pain during walking/standing
4. Pain relief upon sitting
5. > 48 years old

Interpretation:

Variables Sensitivity Specificity +LR -LR + Post-test Prob
1 0.96 0.20 1.20 0.19 44.0%
2 0.68 0.62 1.80 0.51 55.0%
3 0.29 0.88 2.50 0.80 63.0%
4 0.06 0.98 4.60 0.95 76.0%
5 0.01 1.00 0.99 99.0%

Research:

1. Cook C, Brown C, Michael K, Isaacs R, Howes C, Richardson W, Roman M, Hegedus E. The clinical value of a cluster of patient history and observational findings as a diagnostic support tool for lumbar spine stenosis. Physiother Res Int. 2011; 16(3): 170-8.

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