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Table 1 Subject characteristics (n = 72)

From: A Dose–response relationship between severity of disc degeneration and intervertebral disc height in the lumbosacral spine

Characteristic

Value

Age, years

48.7 (8.3)

Gender, n (%) female

49 (68.1)

BMI, kgm−2

29.2 (7.9)

Smoking, past/present, n (%)

31 (43.1)

Disc degeneration grade, n (%)

1

2

3

4

5

 L1/2

0 (0)

51 (70.8)

18 (25.0)

2 (2.8)

1 (1.4)

 L2/3

0 (0)

37 (51.4)

27 (37.5)

8 (11.1)

0 (0)

 L3/4

0 (0)

25 (34.7)

36 (50.0)

10 (13.9)

1 (1.4)

 L4/5

0 (0)

14 (19.4)

35 (48.6)

22 (30.6)

1 (1.4)

 L5/S1

0 (0)

27 (37.5)

23 (31.9)

19 (26.4)

3 (4.2)

Intervertebral disc height, mm

 

 L1/2

9.7 (1.7)

 L2/3

11.1 (2.0)

 L3/4

11.8 (2.3)

 L4/5

11.4 (2.6)

 L5/S1

10.2 (3.0)

Chronic low back pain grade, n (%)

 

 0 – Pain free

14 (19.2)

 1 – Low disability, low intensity

44 (60.3)

 2 – Low disability, high intensity

5 (6.8)

 3 – High disability, moderately limiting

5 (6.8)

 4 – High disability, severely limiting

5 (6.8)

High intensity pain and or disability, n (%)

15 (20.5)

  1. Results presented as mean (standard deviation) unless otherwise stated