Table 3.

Outcomes.

	DDD	HNP-No rad.	Stenosis	HNP-Rad.
Preop. back pain	70.2	72.5	67.8	68.1
Postop. back pain	28.1	27.3	41.8*	30.3
Back pain relief: unadjusted	42.2	45.2	26.0*	37.8
Back pain relief: adjusted	49.8	45.9	32.6*	45.2
Preop. leg pain	52.1	47.3	55.0	62.3*
Postop. leg pain	20.1	20.2	31.5*	23.9
Leg pain relief: unadjusted	31.7	27.1	23.5*	38.4
Leg pain relief: adjusted	34.7	33.4	21.8*	34.0
Preop. quality of life	0.326	0.371	0.336	0.350
Postop. quality of life	0.753	0.784	0.702	0.754
Improvement of quality of life: unadjusted	0.427	0.413	0.366	0.404
Improvement of quality of life: adjusted	0.317	0.321	0.271	0.299

Unadjusted and adjusted back and leg pain relief and improvement of quality of life are shown in each group. Asteriks marks the group which was significantly different to another group in bold. As adjustment factors, gender, age, preoperative pain medication, intervertebral level of the intervention, pharmacologically treated depression, type of work and working activity level were employed.