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Table 4 The likelihood ratios and post-test probabilities for combining clinical variables according to multivariable logistic regression analysis results

From: Association of high sensitivity C-reactive protein with tearing of the long head of the biceps tendon

 No. (%) of Patients with Positive Test ResultsPretest ProbabilityPretest OddsPost-Test ProbabilityPost-Test OddsPositive likelihood RatioNegative likelihood Ratio
Biceps tendon tear groupBiceps tendon intact group
Positive for five variables12.22% (33/270)0.64% (2/312)0.460.870.9616.5019.070.88
Positive for four variables13.70% (37/270)1.60% (5/312)0.460.870.887.418.550.88
Positive for three variables27.04% (73/270)3.31% (10/302)0.460.870.877.338.440.75
Positive for two variables30.00% (81/270)6.73% (21/312)0.460.870.793.864.460.75
Positive for age ≥ 6751.11% (138/270)24.68% (77/312)0.460.870.641.792.070.65
Positive for subscapularis tendon tear54.44% (147/270)23.72% (74/312)0.460.870.682.012.300.60
Positive for degree of Patte ≥254.44% (147/270)13.78% (43/312)0.460.870.712.713.950.53
Positive for hs-CRP > 1 mg/L60.74% (164/270)23.72% (74/312)0.460.870.611.501.920.71
Positive for pain VAS ≥759.63% (161/270)27.24% (85/312)0.460.870.651.892.190.55
  1. A total of 582 patients (270 in the biceps tendon tear group and 312 in the biceps tendon intact group) were included in this analysis. The cutoff values of age ≥ 67 years, degree of Patte ≥2, and pain VAS ≥7 were determined using the ROC curve method. The combination of four positive variables did not include the variable of hs-CRP > 1 mg/L. The results of the combinations of triads and of pairs of positive variables were derived from the values of the highest positive likelihood ratios among those triads and pairs