Effect of manual therapy with exercise in patients with chronic cervical radiculopathy: a randomized clinical trial

Table 4 Pearson correlation coefficient for the relationship between the outcome measures

Outcomes	r²	P value
NPRS vs.
NDI	0.82	< 0.000
CROM—extension	−0.02	0.918
CROM—lateral flexion (affected)	−0.05	0.817
CROM—rotation (affected)	−0.32	0.100
PPT—cervical spine	−0.33	0.086
PPT—affected dermatome	−0.03	0.906
HPT—cervical spine	0.04	0.833
HPT—affected dermatome	−0.17	0.475
CPT—cervical spine	0.11	0.587
CPT—affected dermatome	0.10	0.683
NDI vs.
CROM—extension	−0.2	0.304
CROM—lateral flexion (affected)	−0.19	0.339
CROM—rotation (affected)	−0.26	0.18
PPT—cervical spine	−0.16	0.426
PPT—affected dermatome	0.16	0.538
HPT—cervical spine	0.07	0.727
HPT—affected dermatome	−0.22	0.362
CPT—cervical spine	−0.03	0.875
CPT—affected dermatome	0.22	0.37

Abbreviations: NPRS Numeric pain rating scale, NDI Neck disability index, CROM Cervical range of motion, PPT Pressure pain threshold, HPT Heat pain threshold, CPT Cold pain threshold

ISSN: 1745-6215