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Table 3 Descriptive statistics for predictors of malignancy

From: Symptoms and signs associated with benign and malignant proximal fibular tumors: a clinicopathological analysis of 52 cases

Variable Benign (n = 44) Malignant (n = 8) Statistic value P value Sens. Spec. PPV NPV LR+ LR−
Age mean (SD) 24.7 (16.4) 36.6 (23.4) F = 3.118 0.084 N/A N/A N/A N/A N/A N/A
Male 23 3 χ 2 = 0.148 0.701 38% 48% 12% 48% 0.72 1.31
Left 28 6 χ 2 = 0.047 0.828 75% 36% 18% 36% 1.18 0.69
Pain 16 8 χ 2 = 8.618 0.003 100% 64% 33% 64% 2.75 N/A
Palpable mass 25 3 χ 2 = 0.388 0.533 38% 43% 11% 43% 0.66 1.45
Imaging examination 7 0 χ 2 = 0.422 0.516 0% 84% 0% 84% 0 1.19
Palpable pain 9 6 χ 2 = 7.335 0.007 5% 60% 25% 60% 0.14 1.58
High temperature 1 5 χ 2 = 24.056 <0.001 63% 98% 83% 98% 27.50 0.38
Peroneal nerve compression 1 5 χ 2 = 24.056 <0.001 63% 98% 83% 98% 27.50 0.38
Changes in symptom 5 4 χ 2 = 7.060 0.008 50% 89% 44% 89% 4.40 0.56
Duration month mean (SD) 11.7 (20.3) 2.9 (2.5) F = 1.448 0.235 N/A N/A N/A N/A N/A N/A
  1. LR+ positive likelihood ratio, LR– negative likelihood ratio, NPV negative predictive value, PPV positive predictive value, N/A not applicable