Table 3 Integrated risk stratification model for solitary fibrous tumors

From: Comprehensive analysis reveals potential therapeutic targets and an integrated risk stratification model for solitary fibrous tumors

Risk factor

Score (Linear Predictor)

Points

Mitotic counts

<4/10HPF

0

0

≥4/10HPF

2.42

53

MTOR mutation

Wild-type

0

0

Mutation

4.56

100

Ki-67+ cells density (cells/mm2)

<454.7 (190 cells/10HPF)a

0

0

≥454.7 (190 cells/10HPF)

0.949

21

CD163+ cells density (cells/mm2)

<929.3 (387cells/10HPF)b

0

0

≥929.3 (387cells/10HPF)

2.07

45

Risk stratification

Total score

Total points

Low

0

0

Intermediate

0–3.37

0–74

High

>3.37

74

  1. HPF High Power Field.
  2. a,bThe common field number (F.N.) for a microscope is 22 mm, the area under the visual field of 40× was 0.24 mm2, 454.7cells/mm2 equals 190 cells/10HPF, 929.3 cells/mm2 equals 387cells/10HPF.
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