Table 2.

Adjusted^* mean estimates and 95% confidence intervals by group and for differences between-group^** at week 3

	Adjusted mean estimates at week 3 (95% CI) *			Adjusted mean between-group difference (95% CI) **
	Thrust SM (n=63)	Non-thrust SM (n=66)	Wait List Control (n=42)	Thrust SM vs. Non-thrust SM	Thrust SM vs. Wait List Control	Non-thrust SM vs. Wait List Control
Roland Morris Disability Questionnaire	5.8 (4.8 to 6.8)	5.8 (4.8 to 6.7)	8.9 (7.7 to 10.0)	0 (−1.4, 1.5)	−3.0 (−4.7 to −1.4)	−3.1 (−4.8 to −1.4)
Average LBP intensity during past week (VAS, mm)	31.0 (25.2 to 36.7)	35.2 (29.5 to 40.9)	48.0 (41.2 to 54.8)	−4.2 (−13.5 to 5.0)	−17.1 (−27.5 to −6.7)	−12.8 (−23.1 to −2.6)
Fear-Avoidance Beliefs Questionnaires
Physical Activity Subscale	12.9 (11.7 to 14.1)	14.3 (13.1 to 15.5)	14.4 (12.9 to 16.0)	−1.5 (−3.4 to 0.5)	−1.6 (−3.8 to 0.7)	−0.1 (−2.4 to 2.2)
Work Subscale	12.1 (10.3 to 13.8)	11.6 (9.8 to 13.3)	15.2 (13.1 to 17.3)	0.5 (−2.2 to 3.3)	−3.1 (−6.2 to 0)	−3.6 (−6.7 to −0.5)
Short Form-36 Health Survey
Physical Health Summary Measure	39.6 (37.9 to 41.3)	39.9 (38.3 to 41.6)	34.8 (32.8 to 36.9)	−0.4 (−3.1 to 2.3)	4.7 (1.6 to 7.8)	5.1 (2.0 to 8.1)
Mental Health Summary Measure	49.2 (47.4 to 51.0)	51.1 (49.3 to 52.9)	49.8 (47.6 to 52.0)	−1.9 (−4.8 to 1.1)	−0.6 (−3.9 to 2.7)	1.3 (−2.0 to 4.6)

SM – spinal manipulation; CI – confidence interval; VAS – visual analog scale.

^*Adjusted for sex, age, duration of current LBP episode, level of baseline Roland Morris score, level of baseline Fear-Avoidance Belief score for work, and the respective baseline outcome variable

^**Controlled for pairwise comparisons with the Bonferroni method