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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: J Pain. 2010 Mar 31;11(7):681–691. doi: 10.1016/j.jpain.2009.10.013

Table 3.

Pain variable factor loadings using Principal Axis Factoring with Varimax rotation.

Factor 1 Factor 2 Factor 3
Name Intensity Tolerance Qualitative
VAS .83 -.23 .35
Peak eVAS .83 -.06 .07
Borg NRS .75 -.28 .33
Tolerance -.10 .95 .03
Threshold -.07 .46 -.16
MPQ .15 -.07 .74
PPI .35 -.46 .56
%PPT .12 .01 -.09

Factor loadings > 0.40 are shown in bold.

Note: NRS- 0-10 numeric rating scale; eVAS- electronic Visual Analog Scale; VAS- short-form McGill Pain Questionnaire (MPQ) Visual Analog Scale; MPQ- MPQ total score; PPI- MPQ Present Pain Index; PPT- mean standardized PPT scores.