Table 3 Comparison of the three features between the CM and non-CM groups.

From: A screening method for cervical myelopathy using machine learning to analyze a drawing behavior

 

Spiral

Non-CM group

CM group

p-value

DT (IQR) (seconds)

9.5 (8.0–11.7)

9.8 (8.6–11.2)

0.67

AP (IQR)

1.8 (1.3–2.3)

1.2 (0.8–1.7)

0.00077

SP (IQR)

− 102.8 (− 117.2, − 57.5)

− 116.3 (− 128.8, − 80.0)

0.01

 

Square wave

Non-CM group

CM group

p-value

DT (IQR) (seconds)

5.6 (4.3–7.7)

5.8 (5.1–8.3)

0.28

AP (IQR)

1.5 (1.2–2.1)

1.0 (0.7–1.6)

0.00095

SP (IQR)

− 56.9 (− 70, − 41.4)

− 61 (− 80.5, − 45.3)

0.31

 

Triangular wave

Non-CM group

CM group

p-value

DT (IQR) (seconds)

5.0 (3.8–7.0)

5.4 (4.4–7.5)

0.35

AP (IQR)

1.5 (1.2–2.1)

1.1 (0.7–1.6)

0.002

SP (IQR)

− 53.2 (− 67.0, − 34.7)

− 61.4 (− 74.2, − 43.1)

0.05

  1. IQR, interquartile range; DT, drawing time; AP, average pressure; SP, SPARC (spectral arc length).