From: Evaluation of health related quality of life with the use of Oswestry disability index in degenerative discogenic low back pain
ODI
Mean ± SD/no. (%)
Mean value of ODI (range)
49.14 ± 17.4 (12–90)
Minimal (0–20)
4 (4%)
Moderate (21–40)
27 (27%)
Severe (41–60)
46 (46%)
Crippled (61–80)
16 (16%)
Bed ridden (81–100)
7 (7%)