Table 2

Distributions of exposure intensity variables and their correlations

5th Centile25th CentileMedian75th Centile95th Centile
Median velocity of flexion/extension of the wrist (°/s)Correlation with mean power frequency (Hz)
 Total (n=4420)14.3515.2015.6316.0716.780.38*
  Men (n=2738)14.3615.2215.6716.0716.730.15*
  Women (n=1682)14.3115.1815.6016.0616.910.80*
Mean power frequency (Hz)Correlation with non-neutral wrist postures (%time)
 Total (n=4420)0.26590.27510.28370.28550.2886−0.36*
  Men (n=2738)0.27960.28370.28480.28640.2890−0.15*
  Women (n=1682)0.26290.26880.27310.27760.2862−0.60*
Non-neutral wrist postures (%time)Correlation with median velocity (°/s)
 Total (n=4420)28.4430.0230.9432.0633.970.13*
  Men (n=2738)28.2129.7830.6231.6934.090.21*
  Women (n=1682)29.0530.5531.4632.3933.940.004
  • Questionnaire responders who provided information on task distribution (n=4420).

  • *Statistically significantly different from zero (p<0.0001).