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Table 1 Initial characteristic of the subjects according to the study group

From: Manual therapy versus therapeutic exercise in non-specific chronic neck pain: a randomized controlled trial

Variables Group Z
Manual therapy Therapeutic exercise Control P
Age (i) 42.95 ± 2.89 36.78 ± 2.89 36.90 ± 2.89 0.312b
Gender (ii) (male, female; %) 23 (5/22); 77 (17/22) 22 (5/23); 78 (18/23) 25 (5/20); 75 (15/20) 0.315c
Height (i) (cm) 168.05 ± 3.47 165.48 ± 2.10 168.85 ± 2.19 0.413b
Weight (i) (Kg) 69.86 ± 3.47 65.26 ± 2.35 70.45 ± 2.15 0.467b
Body mass index (i) (Kg/m2) 24.67 ± 1.13 23.8 ± 0.72 24.75 ± 0.75 0.379b
VAS (i) (mm) 41.95 ± 4.03 48.17 ± 3.48 49.80 ± 3.53 0.237b
NDI (i) (%) 27.32 ± 1.88 27.96 ± 2.02 29.55 ± 3.35 0.999b
PPT(i) (N) 21.79 ± 1.42 20.33 ± 1.31 23.55 ± 1.30 0.292a
  1. Control control group, Manual therapy manual therapy group, Therapeutic exercise therapeutic exercise group, Z Shapiro-Wilk normality test, P statistical significance
  2. (i) Dates expressed as means ± standard deviation
  3. (ii) Dates expressed as percent (partial/total)
  4. aANOVA
  5. bKruskal-Wallis H
  6. cChi-squared
  7. *Statistically significant differences between groups (P < 0.05)