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Table 3 Correlations of scores of inflammatory and oxidative stress biomarkers

From: Serum inflammatory and oxidative stress biomarkers levels are associated with pain intensity, pressure pain threshold and quality of life in myofascial pain syndrome

Variable

Resting pain

Pain intensity with activity

Night pain

PPT

Pain duration

PF

RP

RE

EF

EW

SF

P

GH

PH

MH

With clinical findings and quality of life in patient (case) groupa

hs-CRP

r = 0.349 (0.171–527)

r = 0.259 (−0.067–0.451)

r = 0.285 (0.089–0.481)

r = 0.269 (−0.070–0.468)

r = 0.283 (0.121–0.445)

r = −0.265 (−0.540–0.010)

r = −0.081 (−0.377–0.215)

r = −0.313 (−0.554–0.072)

r = −0.379 (−0.661–0.097)

r = −0.390 (−0.720–0.060)

r = −0.381 (−0.733–0.029)

r = −0.324 (−0.644–0.04)

r = −0.083 (−0.396–0.230)

r = −0.190 (−0.496–0.116)

r = −0.524 (−0.776–0.272)

p = 0.001

p = 0.049

p = 0.043

p = 0.047

p = 0.007

p = 0.079

p = 0.596

p = 0.036

p = 0.010

p = 0.008

p = 0.010

p = 0.030

p = 0.589

p = 0.212

p = 0.001

TAC

r = −0.312 (−0.609–0.015)

r = −0.116 (−0.422–0.190)

r = −0.253 (−0.551–0.045)

r = −0.041 (−0.348–0.266)

r = 0.180 (−0.122–0.482)

r = 0.410 (0.130–0.690)

r = 0.615 (0.373–0.857)

r = 0.123 (−0.182–0.428)

r = −0.012 (−0.319–0.295)

r = −0.104 (−0.410–0.202)

r = 0.253 (−0.044–0.551)

r = 0.228 (−0.072–0.527)

r = 0.415 (0.135–0.695)

r = 0.359 (0.072–0.646)

r = 0.119 (−0.186–0.424)

p = 0.037

p = 0.447

p = 0.093

p = 0.789

p = 0.236

p = 0.005

p < 0.001

p = 0.421

p = 0.939

p = 0.497

p = 0.093

p = 0.132

p = 0.005

p = 0.016

p = 0.436

MDA

r = 0.241 (−0.043–0.525)

r = 0.287 (−0.008–0.581)

r = 0.082 (−0.224–0.389)

r = 0.234 (−0.064–0.533)

r = 0.259 (−0.038–0.556)

r = 0.150 (−0.154–0.454)

r = 0.123 (−0.182–0.428)

r = 0.041 (−0.266–0.348)

r = 0.028 (−0.280–0.335)

r = 0.033 (−0.274–0.340)

r = 0.085 (−0.222–0.391)

r = 0.271 (−0.025–0.567)

r = 0.008 (−0.300–0.315)

r = 0.161 (−0.143–0.465)

r = 0.048 (−0.260–0.355)

p = 0.110

p = 0.056

p = 0.592

p = 0.121

p = 0.086

p = 0.325

p = 0.421

p = 0.790

p = 0.856

p = 0.829

p = 0.580

p = 0.072

p = 0.959

p = 0.291

p = 0.756

SOD

r = −0.184 (−0.457–0.089)

r = −0.076 (−0.383–0.230)

r = −0.101 (−0.407–0.205)

r = −0.029 (−0.336–0.279)

r = 0.277 (−0.072–0.626)

r = 0.077 (−0.229–0.384)

r = 0.029 (−0.279–0.336)

r = 0.124 (−0.181–0.429)

r = 0.120 (−0.186–0.425)

r = −0.114 (−0.420–0.191)

r = −0.033 (−0.340–0.275)

r = 0.133 (−0.172–0.438)

r = 0.057 (−0.250–0.364)

r = 0.077 (−0.229–0.384)

r = 0.057 (−0.250–0.364)

p = 0.225

p = 0.618

p = 0.507

p = 0.851

p = 0.133

p = 0.614

p = 0.852

p = 0.416

p = 0.433

p = 0.455

p = 0.831

p = 0.383

p = 0.709

p = 0.614

p = 0.709

PLA2

r = 0.263 (−0.020–0.546)

r = 0.131 (−0.165–0.427)

r = 0.140 (−0.131–0.411)

r = 0.025 (−0.238–0.288)

r = −0.074 (−0.373–0.225)

r = −0.137 (−0.474–0.200)

r = −0.383 (−0.604–0.162)

r = −0.314 (−0.544–0.084)

r = −0.140 (−0.453–0.173)

r = −0.152 (−0.436–0.132)

r = −0.086 (−0.384–0.212)

r = −0.328 (−0.560–0.096)

r = −0.233 (−0.498–0.032)

r = −0.310 (−0.488–0.132)

r = −0.210 (−0.587–0.167)

p = 0.071

p = 0.393

p = 0.360

p = 0.869

p = 0.361

p = 0.369

p = 0.009

p = 0.035

p = 0.357

p = 0.319

p = 0.576

p = 0.028

p = 0.124

p = 0.038

p = 0.165

With quality of life in control (healthy) groupa

hs-CRP

–

–

–

–

–

r = −0.178 (−0.470–0.123)

r = −0.108 (−0.399–0.182)

r = −0.265 (−0.559–0.030)

r = 0.001 (−0.305–0.307)

r = −0.423 (−0.700–0.147)

r = −0.203 (−0.502–0.096)

r = −0.295 (−0.600–0.123)

r = −0.071 (−0.399–0.257)

r = −0.222 (−0.515–0.071)

r = −0.351 (−0.637–0.065)

p = 0.079

p = 0.094

p = 0.077

p = 0.994

p = 0.004

p = 0.178

p = 0.058

p = 0.240

p = 0.104

p = 0.017

TAC

–

–

–

–

–

r = 0.329 (0.038–0.619)

r = 0.615 (0.372–0.857)

r = 0.444 (0.169–0.720)

r = 0.246 (−0.052–0.544)

r = 0.225 (−0.074–0.525)

r = 0.450 (0.175–0.724)

r = 0.489 (0.221–0.757)

r = 0.618 (0.377–0.860)

r = 0.667 (0.438–0.896)

r = 0.577 (0.326–0.828)

p = 0.027

p < 0.001

p = 0.002

p = 0.103

p = 0.137

p = 0.002

p = 0.001

p < 0.001

p < 0.001

p < 0.001

MDA

–

–

–

–

–

r = −0.296 (−0.590–0.003)

r = −0.637 (−0.874–−0.399)

r = −0.314 (−0.606–0.022)

r = −0.280 (−0.575–0.016)

r = −0.510 (−0.775–−0.245)

r = −0.291 (−0.585–0.004)

r = −0.553 (−0.810–−0.297)

r = −0.642 (−0.878–−0.406)

r = −0.697 (−0.918–−0.477)

r = −0.523 (−0.785–−0.261)

p = 0.048

p < 0.001

p = 0.036

p = 0.063

p < 0.001

p = 0.053

p < 0.001

p < 0.001

p < 0.001

p < 0.001

SOD

–

–

–

–

–

r = 0.376 (0.091–0.661)

r = 0.681 (0.456–0.906)

r = 0.407 (0.126–0.688)

r = 0.208 (−0.093–0.508)

r = 0.261 (−0.036–0.558)

r = 0.080 (−0.195–0.355)

r = 0.129 (−0.170–0.429)

r = 0.557 (0.326–0.828)

r = 0.716 (0.501–0.930)

r = 0.546 (0.288–0.803)

p = 0.011

p < 0.001

p = 0.005

p = 0.171

p = 0.084

p = 0.315

p = 0.208

p < 0.001

p < 0.001

p < 0.001

PLA2

–

–

–

–

–

r = −0.328 (−0.619–0.037)

r = −0.381 (−0.665–0.097)

r = −0.290 (−0.584–0.004)

r = −0.203 (−0.504–0.098)

r = −0.339 (−0.928–0.050)

r = −0.548 (−0.805–0.290)

r = −0.424 (−0.702–0.145)

r = −0.412 (−0.692–0.131)

r = −0.486 (−0.754–0.217)

r = −0.532 (−0.793–0.272)

p = 0.028

p = 0.010

p = 0.053

p = 0.181

p = 0.023

p < 0.001

p = 0.004

p = 0.005

p = 0.001

p < 0.001

  1. Unadjusted linear regression was used. Values of p < 0.05 are considered as statistically significant
  2. PPT pressure pain threshold, hs-CRP high-sensitive C-reactive protein, MDA malondialdehyde, PLA2 phospholipase A2, SOD superoxide dismutase, TAC total antioxidant capacity, EF energy/fatigue, EW emotional wellbeing, GH general health, MH mMental health, P pain, PF physical function, PH physical health, RE role limitation due to emotional problems, RP role limitation due to physical health, SF social function