TY - JOUR
T1 - Pain characteristic differences between subacute and chronic back pain
AU - Chanda, Mona Lisa
AU - Alvin, Matthew D.
AU - Schnitzer, Thomas J.
AU - Apkarian, A. Vania
N1 - Funding Information:
Supported by a National Institute for Health Research Grant NINDS NS35115 .
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/7
Y1 - 2011/7
N2 - Back pain is commonly classified based on duration. There is currently limited information regarding differences in the clinical features of back pain between these duration-based groupings. Here, we compared the pain characteristics of patients with subacute (SBP; pain 6-16 weeks, n = 40) and chronic back pain (CBP; pain ≥1 year, n = 37) recruited from the general population. CBP patients reported significantly higher pain intensity on the Visual Analogue Scale (VAS) compared to SBP patients. Based on this finding, we investigated group differences and their dependence on VAS for the Beck Depression Inventory (BDI), sensory and affective dimensions of the McGill Pain Questionnaire (MPQ-S and MPQ-A), Neuropathic Pain Scale (NPS), and the variability of spontaneous pain. Correction for VAS abolished significant group differences on the MPQ-S, MPQ-A and NPS. Only a significant difference in the variability of spontaneous pain was independent of VAS. Finally, whereas SBP patients displayed a higher incidence of unilateral pain radiating down the legs/buttocks, there was a shift towards more bilateral pain in CBP patients. In summary, SBP and CBP groups differ on 3 independent parameters: VAS ratings, pain location, and temporal dynamics of spontaneous pain. Perspective: The present study reports differences in the characteristics of back pain between duration-based groupings in the general population. The main outcome of the study is the demonstration that a small number of descriptors are required to characterize the difference between SBP and CBP.
AB - Back pain is commonly classified based on duration. There is currently limited information regarding differences in the clinical features of back pain between these duration-based groupings. Here, we compared the pain characteristics of patients with subacute (SBP; pain 6-16 weeks, n = 40) and chronic back pain (CBP; pain ≥1 year, n = 37) recruited from the general population. CBP patients reported significantly higher pain intensity on the Visual Analogue Scale (VAS) compared to SBP patients. Based on this finding, we investigated group differences and their dependence on VAS for the Beck Depression Inventory (BDI), sensory and affective dimensions of the McGill Pain Questionnaire (MPQ-S and MPQ-A), Neuropathic Pain Scale (NPS), and the variability of spontaneous pain. Correction for VAS abolished significant group differences on the MPQ-S, MPQ-A and NPS. Only a significant difference in the variability of spontaneous pain was independent of VAS. Finally, whereas SBP patients displayed a higher incidence of unilateral pain radiating down the legs/buttocks, there was a shift towards more bilateral pain in CBP patients. In summary, SBP and CBP groups differ on 3 independent parameters: VAS ratings, pain location, and temporal dynamics of spontaneous pain. Perspective: The present study reports differences in the characteristics of back pain between duration-based groupings in the general population. The main outcome of the study is the demonstration that a small number of descriptors are required to characterize the difference between SBP and CBP.
KW - Low back pain
KW - McGill Pain Questionnaire (MPQ)
KW - Visual Analogue Scale (VAS)
KW - chronic back pain (CBP)
KW - fractal dimension
KW - pain intensity
KW - subacute back pain (SBP)
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U2 - 10.1016/j.jpain.2011.01.008
DO - 10.1016/j.jpain.2011.01.008
M3 - Article
C2 - 21497139
AN - SCOPUS:79959959302
VL - 12
SP - 792
EP - 800
JO - Journal of Pain
JF - Journal of Pain
SN - 1526-5900
IS - 7
ER -