| PMC full text: | Published online 2018 Apr 5. doi: 10.1371/journal.pone.0191852
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Table 4
Scoring tool based on model (i) for clinical assessment items and corresponding predicted probability of sciatica.
| Variable in the model | Does the patient: | Score | |||||||||
| Subjective sensory changes | Report any pins and needles or numbness in the involved lower limb | 1 | |||||||||
| Below knee pain | Report pain below the knee | 2 | |||||||||
| Leg pain worse than back pain | Report that their leg pain is worse than their back pain | 2 | |||||||||
| Neural Tension tests | Have a positive straight leg raise test and/or femoral nerve test and/or slump test | 3 | |||||||||
| Neurological deficit | Have any myotome/ reflex or sensory deficit in the involved lower limb | 2 | |||||||||
| Sum Score | …. | ||||||||||
| Sum Score | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| N | 36 | 19 | 19 | 20 | 21 | 47 | 29 | 41 | 61 | 25 | 76 |
| Observed Sciatica (%) | 3 | 11 | 11 | 50 | 67 | 85 | 86 | 100 | 97 | 100 | 100 |
| Mean predicted probability of Sciatica (%) | 4 | 9 | 19 | 42 | 63 | 83 | 93 | 96 | 99 | 100 | 100 |