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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Clin J Pain. 2019 May;35(5):407–419. doi: 10.1097/AJP.0000000000000695

Figure 1.

Figure 1

Pain-related measurements across groups (FMS, Controls) and temperatures (Warm, Cold) show FMS patients experience more pain than controls under both temperature conditions. The pain threshold was reflected in measures of the mean ± SEM dolorimetry values obtained in patients (A). These values did not differ in individuals or in groups when recorded before, during or after exposure to either hot or cold. The McGill pain questionnaire (MPQ) further characterized sensory (B) and affective pain (C) as well as results from the visual analog scale (VAS) (D) and present pain index (PPI) (E). Individual and group values of each parameter did not differ in response to exposure to either cold or warm temperatures. Values in panels A-E were therefore averaged for each individual and represent the average (± SEM) of all time-points of each group at each temperature and analyzed using an unpaired two-tailed Student’s t-test using a cutoff of P < 0.05 for significance.