Development of an attention-touch control for manual cervical distraction: a pilot randomized clinical trial for patients with neck pain

Table 3 Adjusted mean differences of patient-reported outcomes

Outcome variable	Treatment group comparison	Mean difference^a	95 % Confidence interval^a
Neck Pain VAS (mm)^b	High vs. Low	15.6	1.6 to 29.7
	Medium vs. Low	9.8	−3.7 to 23.3
	High vs. Medium	5.8	−8.6 to 20.3
Neck Disability Index^b	High vs. Low	2.7	−0.1 to 5.6
	Medium vs. Low	3.0	0.1 to 5.9
	High vs. Medium	0.2	−2.7 to 3.2
PROMIS –
Pain Interference^c	High vs. Low	3.9	−5.6 to 2.7
	Medium vs. Low	−1.5	1.0 to 0.1
	High vs. Medium	5.4	−2.2 to 9.8
PROMIS –
Physical Function	High vs. Low	−0.2	−2.2 to 1.9
	Medium vs. Low	−1.0	−3.1 to 1.2
	High vs. Medium	0.3	−1.9 to 2.5
PROMIS - Fatigue	High vs. Low	5.8	1.1 to 10.5
	Medium vs. Low	3.3	−1.5 to 8.2
	High vs. Medium	2.5	−2.3 to 7.3
PROMIS –
Sleep Disturbance	High vs. Low	1.3	−0.9 to 3.5
	Medium vs. Low	−1.4	−3.6 to 0.9
	High vs. Medium	2.7	0.4 to 5.0

High High force group (51 to 100 Newtons), Low Low force group (0 to 20 Newtons), Medium Medium force group (21 to 50 Newtons), PROMIS Patient-Reported Outcomes Measurement Information System, VAS Visual Analog Scale
^aAdjusted for the baseline value of the respective variable centered at its mean;
^bAlso adjusted for traction-force feedback method; ^cAlso adjusted for baseline neck pain VAS

ISSN: 1745-6215