Table 1 Baseline characteristics of patients with active and non-active axSpA in training and testing sets

Age (years)

31.68 ± 9.34

30.78 ± 7.05

33.15 ± 12.18

0.252

38.14 ± 10.56

35.57 ± 9.52

42.62 ± 11.40

0.135

CRP (mg/L)

2.37 ± 5.65

0.78 ± 0.71

4.98 ± 8.57

<0.001

1.83 ± 2.78

0.78 ± 0.74

3.65 ± 4.02

0.016

ESR (mm/h)

16.31 ± 18.04

7.69 ± 5.86

30.40 ± 22.08

<0.001

18.55 ± 23.77

9.21 ± 5.59

34.88 ± 34.03

0.011

BASDAI

3.04 ± 1.79

2.21 ± 1.05

4.40 ± 1.92

<0.001

3.39 ± 1.64

2.36 ± 0.87

5.19 ± 0.89

<0.001

ASDAS

1.93 ± 1.06

1.26 ± 0.45

3.04 ± 0.81

<0.001

1.83 ± 0.93

1.29 ± 0.47

2.78 ± 0.75

<0.001

Gender

0.964

0.234

Men

67(77.01)

41(75.93)

26(78.79)

20(90.91)

14(100.00)

6(75.00)

Women

20(22.99)

13(24.07)

7(21.21)

2(9.09)

0(0.00)

2(25.00)