Table 6.

Directed group comparisons of change in the participant-reported outcomes between T2 and T3.

Outcome and analysis		Control			Intervention			Comparison
		Median (range)	Mean (SD)	Median (range)		Mean (SD)	t test (df)		W	P value	r
Δ pain intensity numeric rating scale
	ITTa	0.00 (5.00)	0.14 (1.18)	0.00 (4.00)		–0.12 (1.12)	0.58 (25)		N/Ab	.28	0.12
	PPc	0.00 (5.00)	0.44 (1.33)	0.00 (3.00)		–0.44 (0.88)	1.67 (16)		N/A	.06	0.38
Δ Roland Morris disability questionnaire
	ITT	0.00 (8.50)	–0.25 (1.90)	0.00 (10.00)		0.12 (2.26)	N/A		88	.57d	0.03
	PP	0.00 (4.00)	0.33 (1.41)	–1.00 (6.00)		–0.55 (1.67)	1.22 (16)		N/A	.12	0.29
Δ Tampa Scale for Kinesiophobia, 11-item version
	ITT	–0.75 (9.00)	–0.04 (2.63)	–1.00 (11.50)		–0.88 (3.18)	0.76 (25)		N/A	.23	0.15
	PP	–1.00	0.11 (3.18)	–1.00		–1.22 (3.46)	0.85 (16)		N/A	.20	0.21
Δ quality of life physical subscale
	ITT	0.20 (7.20)	0.23 (1.83)	1.60 (3.20)		1.11 (1.06)	N/A		63.5	.09d	0.26
	PP	1.60 (7.20)	0.53 (2.23)	1.60 (2.40)		1.60 (0.80)	N/A		27.5	.13d	0.27
Δ quality of life psychological subscale
	ITT	0.00 (12.00)	–0.19 (2.65)	0.00 (4.00)		–2.56 (1.26)	N/A		101.5	.71d	0.10
	PP	1.33 (12.00)	–0.15 (3.36)	0.00 (4.00)		–0.44 (1.33)	N/A		50	.81d	0.20
Δ quality of life social subscale
	ITT	0.00 (5.33)	0.62 (1.35)	0.00 (6.67)		–0.15 (1.81)	N/A		114.5	.89d	0.23
	PP	0.00 (5.33)	0.89 (1.63)	0.00 (6.67)		0.30 (1.86)	0.72 (16)		N/A	.76	0.18
Δ quality of life environment subscale
	ITT	0.00 (5.33)	0.45 (1.32)	0.00 (4.00)		0.44 (1.58)	N/A		94	.57	0.03
	PP	0.00 (5.33)	0.67 (1.60)	0.00 (4.00)		0.22 (1.60)	N/A		50	.82d	0.20

^aITT: intention-to-treat.

^bN/A: not applicable.

^cPP: per-protocol.

^dWilcoxon rank-sum test.