Table 2

Primary Outcomes: Clinically Relevant Improvements in Neck Pain Measures

Outcome by Massage Dose	Unadjusted				Adjusted^a

	% (95% CI)	RR (95% CI)	P Value	Overall P Value	RR (95% CI)	P Value	Overall P Value
Clinically relevant improvement in NDI^b
Control	8.6 (2.9–25.3)	1.00	–	.001	1.00	–	.003
1 × 60 min/wk	18.4 (9.4–36.0)	2.15 (0.60–7.67)	.24		1.96 (0.53–7.33)	.32
2 × 30 min/wk	15.8 (7.6–32.9)	1.84 (0.50–6.81)	.36		1.90 (0.53–6.86)	.33
2 × 60 min/wk	31.6 (19.8–50.4)	3.68 (1.13–11.98)	.03		3.41 (1.05–11.08)	.04
3 × 30 min/wk	11.8 (4.7–29.5)	1.37 (0.33–5.68)	.66		1.61 (0.40–6.46)	.50
3 × 60 min/wk	47.4 (33.9–66.2)	5.53 (1.78–17.15)	.003		4.98 (1.64–15.17)	.005
Clinically relevant improvement in neck pain intensity^c
Control	25.7 (14.6–45.2)	1.00	–	<.001	1.00	–	<.001
1 × 60 min/wk	34.2 (22.0–53.2)	1.33 (0.65–2.72)	.43		1.17 (0.58–2.37)	.66
2 × 30 min/wk	42.1 (29.0–61.1)	1.64 (0.83–3.22)	.15		1.61 (0.83–3.13)	.16
2 × 60 min/wk	63.2 (49.5–80.5)	2.46 (1.33–4.54)	.004		2.30 (1.26–4.18)	.007
3 × 30 min/wk	44.1 (30.2–64.4)	1.72 (0.87–3.38)	.12		1.61 (0.81–3.18)	.17
3 × 60 min/wk	76.3 (63.9–91.1)	2.97 (1.64–5.36)	.000		2.73 (1.52–4.91)	.001

RR = relative risk.
↵a Adjusted for baseline Neck Disability Index and neck pain intensity, age, sex, duration of neck pain more than 5 years, use of medications for neck pain, and race/ethnicity (white non-Hispanic vs other).
↵b Improvement of at least 5 points from baseline at 5 weeks postrandomization.
↵c Improvement of at least 30% from baseline at 5 weeks postrandomization.