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Table 2 Validity assessment results (n = 68)

From: German version of the Cornell Musculoskeletal Discomfort Questionnaire (CMDQ): translation and validation

Validity
Body regions Agreement between NRS & D-CMDQ Strength of agreementa Correlation between NRS & D-CMDQ Strength of agreementb
  Frequency scale   Severity scale  
  Cohen’s Kappa   Spearman rank correl. coefficients  
Neck 0.97 excellent 0.97** very high
Right shoulder 0.96 excellent 0.97** very high
Left shoulder 0.96 excellent 0.97** very high
Upper back 0.83 excellent 0.80** high
Right upper arm 0.64 substantial 0.64** moderate
Left upper arm 0.92 excellent 0.93** very high
Lower back 0.94 excellent 0.89** high
Right elbow 0.70 substantial 0.74** high
Left elbow 0.65 substantial 0.70** moderate
Right forearm 0.79 substantial 0.82** high
Left forearm 0.66 substantial 0.70** moderate
Right wrist 0.94 excellent 0.94** very high
Left wrist 0.88 excellent 0.89** high
Right hip/buttocks 0.84 excellent 0.80** high
Left hip/buttocks 0.88 excellent 0.90** high
Right thigh 0.38 fair 0.40** low
Left thigh 0.65 substantial 0.67** moderate
Right knee 0.91 excellent 0.96** very high
Left knee 0.96 excellent 0.95** very high
Right lower leg 0.79 substantial 0.80** high
Left lower leg 0.85 excellent 0.86** high
Right foot 1.00 excellent 1.00** very high
Left foot 0.93 excellent 0.94** very high
  1. **p < 0.01; NRS Numeric Rating Scale, D-CMDQ German version of the Cornell Musculoskeletal Discomfort Questionnaire; a [30]; b [33]