Table 2 Work productivity of patients with axSpA according to work status, disease activity (ASDAS/BASDAI), functional ability (BASFI)

 Paid work

35.7 (± 12.9)

3.4 (± 6.8)

2.1 (± 3.5)

4.1 (± 2.8)

7.9 (± 14.0)

32.6 (± 31.2)*

36.6 (± 30.0)

 - Employed

33.8 (± 9.4)

3.6 (± 7.4)

2.4 (± 3.8)

4.2 (± 2.9)

 - Self employed

43.6 (± 21.4)

2.6 (± 3.3)

1.0 (± 1.7)

3.4 (± 2.4)

 Other daily activities

27.6 (± 12.4)

4.3 (± 9.4)

0.6 (± 1.5)

4.6 (± 3.5)

8.3 (± 13.9)

18.6 (± 28.8)*

25.6 (± 28.5)

 - Domestic work

29.1 (± 10.9)

6.4 (± 13.8)

0.8 (± 2.1)

6.1 (± 3.7)

 - Studying

29.0 (± 13.0)

3.7 (± 6.7)

0.4 (± 0.9)

3.6 (± 3.4)

 - Voluntary work

6.0 (0)

-

3.0 (0)

0.5 (± 0.7)

 - Taking care of family members

14.7 (± 9.5)

1.0 (± 1.7)

-

4.3 (± 2.9)

  < 1.3 (inactive)

41.4 (± 9.6)

0.8 (± 2.1)

2.8 (± 4.7)

2.6 (± 2.8)

1.7 (± 4.0)*

14.5 (± 21.1)

15.3 (± 22.2)*

 1.3–2.1 (moderate)

33.5 (± 18.9)

3.0 (± 6.4)

1.7 (± 3.1)

2.9 (± 2.7)*

5.7 (± 10.0)*

20.9 (± 25.1)

26.3 (± 23.0)*

 2.1 − 3.5 (high)

36.9 (± 13.5)

3.3 (± 5.4)

1.2 (± 2.2)

5.2 (± 2.6)*

7.3 (± 10.9)*

32.2 (± 31.2)

36.9 (± 30.1)*

  ≥ 3.5 (very high)

31.2 (± 10.2)

16.0 (± 16.7)

-

7.0 (± 3.7)

29.2 (± 24.6)*

55.0 (± 44.6)

68.3 (± 28.8)*

  < 4 (low)

37.6 (± 14.9)

2.3 (± 5.0)

1.9 (± 3.7)

2.5 (± 2.5)***

4.4 (± 8.3)

17.4 (± 24.0)*

20.5 (± 24.4)*

  ≥ 4 (high)

35.5 (± 13.1)

5.8 (± 10.2)

1.2 (± 2.3)

5.8 (± 2.8)***

11.5 (± 17.0)

37.9 (± 34.1)*

44.5 (± 30.9)*

  < 2.5 (low)

35.9 (± 13.5)

2.2 (± 4.4)*

1.8 (± 3.3)

3.6 (± 2.9)***

4.8 (± 8.5)*

21.3 (± 26.2)**

24.8 (± 26.3)**

  ≥ 2.5 (high)

38.2 (± 15.3)

10.8 (± 13.8)*

0.7 (± 2.0)

6.9 (± 2.6)***

19.6 (± 21.8)*

52.5 (± 36.2)**

62.5 (± 24.7)**