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Table 5 Risk scoring system of thyroid nodules on the testing dataset

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

  Benign Low suspicion Intermediate suspicion High suspicion
RF SRF<lc(0.265) lcSRF<0.5 0.5≤SRF<hc(0.784) SRFhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  16 0 12 2 13 18 9 220
  100% 0% 75.7% 14.3% 41.9% 58.1% 3.9% 96.1%
LR SLR<lc(0.267) lcSLR<0.5 0.5≤SLR<hc(0.838) SLRhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  23 1 10 6 10 17 7 216
  95.8% 4.2% 62.5% 37.5% 37.0% 63.0% 3.1% 96.9%
SVM SSVM<lc(0.277) lcSSVM<0.5 0.5≤SSVM<hc(0.850) SSVMhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  23 4 5 3 15 21 7 212
  85.2% 14.8% 62.5% 37.5% 41.7% 58.3% 3.2% 96.8%
NET SNET<lc(0.300) lcSNET<0.5 0.5≤SNN<hc(0.820) SNEThc
  benign malignancy benign malignancy benign malignancy benign malignancy
  26 1 11 6 7 16 7 217
  96.3% 3.7% 64.7% 35.3% 30.4% 69.6% 3.1% 96.9%
ELM SELM<lc(0.352) lcSELM<0.5 0.5≤SELM<hc(0.783) SELMhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  22 1 5 5 18 26 5 208
  95.7% 4.3% 50.0% 50.0% 40.9% 59.1% 2.3% 97.7%
KNN SKNN<lc(0.305) lcSKNN<0.5 0.5≤SKNN<hc(0.864) SKNNhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  23l 2 8 1 12 33 7 204
  92.0% 8.0% 88.9% 11.1% 26.7% 73.3% 3.3% 96.7%
NB SNB<lc(0.188) lcSNB<0.5 0.5≤SNB<hc(0.869) SNBhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  32 9 2 5 9 19 7 207
  78.0% 22.0% 28.6% 71.4% 32.1% 67.9% 3.3% 96.7%
ADAB SADA<lc(0.286) lcSADA<0.5 0.5≤SADA<hc(0.614) SADAhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  10 0 22 8 3 14 15 218
  100.0% 0.0% 73.3% 26.7% 17.6% 82.4% 6.4% 93.6%
LOG SLOG<lc(0.317) lcSLOG<0.5 0.5≤SLOG<hc(0.820) SLOGhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  18 1 13 4 15 27 7 205
  94.7% 5.3% 76.5% 23.5% 35.7% 64.3% 3.3% 96.7%
LDA SLDA<lc(0.256) lcSLDA<0.5 0.5≤SLDA<hc(0.958) SLDAhc
  benign malignancy benign malignancy benign malignancy benign malignancy
  27 2 4 2 13 24 6 212
  93.1% 6.9% 66.7% 33.3% 35.1% 64.9% 2.8% 97.2%
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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