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Table 9 Risk scoring system of thyroid nodules on testing dataset in overall nodules

From: Diagnosis of thyroid nodules for ultrasonographic characteristics indicative of malignancy using random forest

RF SRF<lc(0.439) lcSRF<0.5 0.5≤SRF<hc(0.849) SRFhc
  Benign Low suspicion Intermediate suspicion High suspicion
  benign malignancy benign malignancy benign malignancy benign malignancy
  34 5 3 4 15 54 17 179
  87.2% 12.8% 42.9% 57.1% 21.7% 78.3% 8.7% 91.3%
LR SLR<lc(0.486) lcSLR<0.5 0.5≤SLR<hc(0.817) SLRhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  37 15 1 1 14 54 17 172
  71.2% 28.8% 50.0% 50.0% 20.6% 79.4% 9.0% 91.0%
SVM SSVM<lc(0.467) lcSSVM<0.5 0.5≤SSVM<hc(0.863) SSVMhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  37 13 1 1 17 60 15 168
  74.0% 26.0% 50.0% 50.0% 22.1% 77.9% 8.2% 91.8%
NET SNET<lc(0.487) lcSNET<0.5 0.5≤SNET<hc(0.854) SNEThc
  benign malignancy benign malignancy benign malignancy benign malignancy
  37 16 0 1 14 54 18 171
  69.8% 30.2% 0.0% 100.0% 20.6% 79.4% 9.5% 90.5%
ELM SELM<lc(0.409) lcSELM<0.5 0.5≤SELM<hc(0.779) SELMhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  35 11 0 0 20 61 14 172
  76.1% 23.9% 24.7% 75.3% 7.5% 92.5%
KNN SKNN<lc(0.466) lcSKNN<0.5 0.5≤SKNN<hc(0.833) SKNNhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  39 12 0 0 14 70 16 160
  76.5% 23.5% 16.7% 83.3% 9.1% 90.9%
NB SNB<lc(0.391) lcSNB<0.5 0.5≤SNB<hc(0.836) SNBhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  44 32 1 5 4 23 20 182
  57.9% 42.1% 16.7% 83.3% 14.8% 85.2% 9.9% 90.1%
ADAB SADAB<lc(0.406) lcSADAB<0.5 0.5≤SADAB<hc(0.560) SADABhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  20 9 21 22 10 24 18 187
  69.0% 31.0% 48.8% 51.2% 29.4% 70.6% 8.8% 91.2%
LOG SLOG<lc(0.498) lcSLOG<0.5 0.5≤SLOG<hc(0.802) SLOGhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  34 17 0 0 17 47 18 178
  66.7% 33.3% 26.6% 73.4% 9.2% 90.8%
LDA SLDA<lc(0.464) lcSLDA<0.5 0.5≤SLDA<hc(0.879) SLDAhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  37 15 1 0 13 54 18 173
  71.2% 28.8% 100.0% 0% 19.4% 80.6% 9.4% 90.6%
Management After a 6-month After 3-month   FNA biopsy
of thyroid sonographic sonographic follow-up FNA biopsy or surgical
nodules follow-up or FNA biopsy   treatment
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