Skip to main content

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