Table 5.

Mean change in scores over four years and satisfaction rate for reherniation patients, according to whether or not reherniation patients had reherniation within 1 year of index surgery^*.

	Mean Change in Score Compared with Baseline (Standard Error [SE]) or Percent		Difference (95% Confidence interval)†	P
	Reherniation within 1 year of index surgery (n = 27)	Reherniation after 1 year of index surgery (n = 46)
SF-36 Bodily Pain (BP) (SE)††	36.5 (4.1)	40.1 (3.6)	−3.6 (−14.3, 7.1)	0.51
SF-36 Physical Function (PF) (SE)††	38.3 (4.1)	38.7 (3.5)	−0.4 (−11, 10.2)	0.94
SF-36 Mental Component Summary (MCS)††	4.7 (1.7)	4.1 (1.5)	0.6 (−3.9, 5.1)	0.81
Oswestry Disability Index (ODI) (SE) ‡	−32.4 (3.6)	−36 (3.1)	3.6 (−5.7, 12.9)	0.45
Sciatica Bothersomeness Index (SE)§	−9.1 (1.3)	−8.6 (1.1)	−0.5 (−3.9, 2.9)	0.76
Very/somewhat satisfied with symptoms (%)	51.5	60.2	−8.7 (−28.1, 10.7)	0.38

^*Scores are adjusted for age, sex, and baseline score (for SF-36, ODI, and Sciatica Bothersomeness Index).

^†Difference is the difference between the reherniation within 1 year of index surgery and reherniation after 1 year of index surgery.

^††The SF-36 scores range from 0 to 100, with higher score indicating less severe symptoms.

^‡The Oswestry Disability Index ranges from 0 to 100, with lower scores indicating less severe symptoms.

^§The Sciatica Bothersomeness index range from 0 to 24, with lower scores indicating less severe symptoms.