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Table 3 Correlation matrix (Spearman’s rank correlation coefficients; rs) for assigned physical exposures of the neck and right arm and for the reported psychosocial factors for men (N = 765–1113)/women (N = 2802–4673)

From: Work-related neck and upper limb disorders – quantitative exposure–response relationships adjusted for personal characteristics and psychosocial conditions

  Head Trapezius Upper arm Forearm extensors Wrist Psychosocial factors
  Velocity p50 Activity p90 Elevation p90 Velocity p50 Activity p90 Flexion P50 Velocity p50 Job demands Job control Job support
Head
 Forward inclination (p90) 0.8/0.3 0.7/0.6 0.5/0.5 0.7/0.2 0.7/0.0 0.6/0.7 0.8/−0.1 − 0.2/0.2 − 0.1/0.2 0.0/0.0
 Velocity (p50)   0.9/0.7 0.4/0.6 1.0/1.0 0.8/0.7 0.7/0.7 0.9/0.8 −0.2/0.1 − 0.4/− 0.2 −0.1/− 0.2
Trapezius
 Activity (p90)    0.5/0.6 0.9/0.8 0.8/0.7 0.4/0.7 0.9/0.7 −0.1/0.0 −0.4/− 0.3 −0.1/− 0.2
Upper arm
 Elevation (p90)     0.4/0.5 0.4/0.6 0.5/0.5 0.3/0.4 −0.1/0.1 0.1/0.1 0.2/−0.1
 Velocity (p50)      0.8/0.8 0.5/0.6 1.0/0.9 −0.1/0.0 − 0.4/− 0.3 −0.2/− 0.2
Forearm extensors
 Activity (p90)       0.6/0.3 0.9/0.8 −0.2/−0.2 −0.4/− 0.2 −0.1/− 0.2
Wrist
 Palmar flexion (p50)        0.6/0.4 −0.1/0.1 −0.3/− 0.1 0.0/− 0.2
 Velocity (p50)         −0.1/0.0 −0.5/− 0.4 −0.2/− 0.3
Psychosocial factors
 Job demands          −0.1/0.0 − 0.1/0.0
 Job control           0.5/0.3
  1. For all values above 0.1 p < 0.05