Joint-Specific Multidimensional Assessment of Pain (J-MAP): Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis

Research output: Contribution to journalArticle

Kimberly J. O'Malley, Maria Suarez-Almazor, Julie Aniol, Peter Richardson, David H. Kuykendall, J. Bruce Moseley, Nelda Wray

Objective. To develop a reliable and valid instrument for measuring and monitoring joint-specific pain. Methods. Developed using patient interviews, reviews of pain literature, and expert input from orthopedic surgeons, the final Joint-Specific Multidimensional Assessment of Pain (J-MAP) includes the 6-item Pain Sensory and the 4-item Pain Affect subscales. Scores on the J-MAP Pain Sensory and Affect subscales range from 0 to 100, with higher scores indicating more pain intensity and worse pain distastefulness, respectively. Following the assessment of the factor structure, patients' scores (n = 180) on the J-MAP subscales were converted to equal interval scores using Rasch analyses. A psychometric evaluation of the items and Rasch-calibrated scores was conducted and included an assessment of reliability, validity, and responsiveness for use with patients with radiographic knee osteoarthritis. Results. Evidence from the factor analyses showed that the J-MAP Pain Sensory and Affect items made up 2 distinct factors. Internal consistency estimates for the J-MAP subscales exceeded 0.85. The J-MAP subscales showed evidence for validity and were shown to be internally and externally responsive, demonstrating greater responsiveness than the Arthritis Impact Measurement Scale or the Medical Outcome Study Short Form-36 pain subscales. Finally, evidence was found supporting the J-MAP subscales' ability to distinguish target joint pain from pain emanating from other musculoskeletal conditions. Conclusion. The J-MAP is a reliable, valid, and responsive measure for assessing joint-specific pain at a single time point, or changes over time for one or a group of patients with knee osteoarthritis. With this initial evidence of its psychometric rigor, further testing of the measurement properties of the J-MAP in other joints and in other populations should be undertaken.

Original languageEnglish (US)
Pages (from-to)534-543
Number of pages10
JournalJournal of Rheumatology
Volume30
Issue number3
StatePublished - Mar 1 2003

PMID: 12610814

Cite this

Standard

Joint-Specific Multidimensional Assessment of Pain (J-MAP) : Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis. / O'Malley, Kimberly J.; Suarez-Almazor, Maria; Aniol, Julie; Richardson, Peter; Kuykendall, David H.; Moseley, J. Bruce; Wray, Nelda.

In: Journal of Rheumatology, Vol. 30, No. 3, 01.03.2003, p. 534-543.

Research output: Contribution to journalArticle

Harvard

O'Malley, KJ, Suarez-Almazor, M, Aniol, J, Richardson, P, Kuykendall, DH, Moseley, JB & Wray, N 2003, 'Joint-Specific Multidimensional Assessment of Pain (J-MAP): Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis' Journal of Rheumatology, vol. 30, no. 3, pp. 534-543.

APA

O'Malley, K. J., Suarez-Almazor, M., Aniol, J., Richardson, P., Kuykendall, D. H., Moseley, J. B., & Wray, N. (2003). Joint-Specific Multidimensional Assessment of Pain (J-MAP): Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis. Journal of Rheumatology, 30(3), 534-543.

Vancouver

O'Malley KJ, Suarez-Almazor M, Aniol J, Richardson P, Kuykendall DH, Moseley JB et al. Joint-Specific Multidimensional Assessment of Pain (J-MAP): Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis. Journal of Rheumatology. 2003 Mar 1;30(3):534-543.

Author

O'Malley, Kimberly J. ; Suarez-Almazor, Maria ; Aniol, Julie ; Richardson, Peter ; Kuykendall, David H. ; Moseley, J. Bruce ; Wray, Nelda. / Joint-Specific Multidimensional Assessment of Pain (J-MAP) : Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis. In: Journal of Rheumatology. 2003 ; Vol. 30, No. 3. pp. 534-543.

BibTeX

@article{fd30bad1d8eb4bacb6ba03a78b60fc27,
title = "Joint-Specific Multidimensional Assessment of Pain (J-MAP): Factor structure, reliability, validity, and responsiveness in patients with knee osteoarthritis",
abstract = "Objective. To develop a reliable and valid instrument for measuring and monitoring joint-specific pain. Methods. Developed using patient interviews, reviews of pain literature, and expert input from orthopedic surgeons, the final Joint-Specific Multidimensional Assessment of Pain (J-MAP) includes the 6-item Pain Sensory and the 4-item Pain Affect subscales. Scores on the J-MAP Pain Sensory and Affect subscales range from 0 to 100, with higher scores indicating more pain intensity and worse pain distastefulness, respectively. Following the assessment of the factor structure, patients' scores (n = 180) on the J-MAP subscales were converted to equal interval scores using Rasch analyses. A psychometric evaluation of the items and Rasch-calibrated scores was conducted and included an assessment of reliability, validity, and responsiveness for use with patients with radiographic knee osteoarthritis. Results. Evidence from the factor analyses showed that the J-MAP Pain Sensory and Affect items made up 2 distinct factors. Internal consistency estimates for the J-MAP subscales exceeded 0.85. The J-MAP subscales showed evidence for validity and were shown to be internally and externally responsive, demonstrating greater responsiveness than the Arthritis Impact Measurement Scale or the Medical Outcome Study Short Form-36 pain subscales. Finally, evidence was found supporting the J-MAP subscales' ability to distinguish target joint pain from pain emanating from other musculoskeletal conditions. Conclusion. The J-MAP is a reliable, valid, and responsive measure for assessing joint-specific pain at a single time point, or changes over time for one or a group of patients with knee osteoarthritis. With this initial evidence of its psychometric rigor, further testing of the measurement properties of the J-MAP in other joints and in other populations should be undertaken.",
keywords = "Equal interval scaling, Joint pain, Osteoarthritis, Outcome measure, Validity",
author = "O'Malley, {Kimberly J.} and Maria Suarez-Almazor and Julie Aniol and Peter Richardson and Kuykendall, {David H.} and Moseley, {J. Bruce} and Nelda Wray",
year = "2003",
month = "3",
day = "1",
language = "English (US)",
volume = "30",
pages = "534--543",
journal = "Journal of Rheumatology",
issn = "0315-162X",
publisher = "Journal of Rheumatology",
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}

RIS

TY - JOUR

T1 - Joint-Specific Multidimensional Assessment of Pain (J-MAP)

T2 - Journal of Rheumatology

AU - O'Malley, Kimberly J.

AU - Suarez-Almazor, Maria

AU - Aniol, Julie

AU - Richardson, Peter

AU - Kuykendall, David H.

AU - Moseley, J. Bruce

AU - Wray, Nelda

PY - 2003/3/1

Y1 - 2003/3/1

N2 - Objective. To develop a reliable and valid instrument for measuring and monitoring joint-specific pain. Methods. Developed using patient interviews, reviews of pain literature, and expert input from orthopedic surgeons, the final Joint-Specific Multidimensional Assessment of Pain (J-MAP) includes the 6-item Pain Sensory and the 4-item Pain Affect subscales. Scores on the J-MAP Pain Sensory and Affect subscales range from 0 to 100, with higher scores indicating more pain intensity and worse pain distastefulness, respectively. Following the assessment of the factor structure, patients' scores (n = 180) on the J-MAP subscales were converted to equal interval scores using Rasch analyses. A psychometric evaluation of the items and Rasch-calibrated scores was conducted and included an assessment of reliability, validity, and responsiveness for use with patients with radiographic knee osteoarthritis. Results. Evidence from the factor analyses showed that the J-MAP Pain Sensory and Affect items made up 2 distinct factors. Internal consistency estimates for the J-MAP subscales exceeded 0.85. The J-MAP subscales showed evidence for validity and were shown to be internally and externally responsive, demonstrating greater responsiveness than the Arthritis Impact Measurement Scale or the Medical Outcome Study Short Form-36 pain subscales. Finally, evidence was found supporting the J-MAP subscales' ability to distinguish target joint pain from pain emanating from other musculoskeletal conditions. Conclusion. The J-MAP is a reliable, valid, and responsive measure for assessing joint-specific pain at a single time point, or changes over time for one or a group of patients with knee osteoarthritis. With this initial evidence of its psychometric rigor, further testing of the measurement properties of the J-MAP in other joints and in other populations should be undertaken.

AB - Objective. To develop a reliable and valid instrument for measuring and monitoring joint-specific pain. Methods. Developed using patient interviews, reviews of pain literature, and expert input from orthopedic surgeons, the final Joint-Specific Multidimensional Assessment of Pain (J-MAP) includes the 6-item Pain Sensory and the 4-item Pain Affect subscales. Scores on the J-MAP Pain Sensory and Affect subscales range from 0 to 100, with higher scores indicating more pain intensity and worse pain distastefulness, respectively. Following the assessment of the factor structure, patients' scores (n = 180) on the J-MAP subscales were converted to equal interval scores using Rasch analyses. A psychometric evaluation of the items and Rasch-calibrated scores was conducted and included an assessment of reliability, validity, and responsiveness for use with patients with radiographic knee osteoarthritis. Results. Evidence from the factor analyses showed that the J-MAP Pain Sensory and Affect items made up 2 distinct factors. Internal consistency estimates for the J-MAP subscales exceeded 0.85. The J-MAP subscales showed evidence for validity and were shown to be internally and externally responsive, demonstrating greater responsiveness than the Arthritis Impact Measurement Scale or the Medical Outcome Study Short Form-36 pain subscales. Finally, evidence was found supporting the J-MAP subscales' ability to distinguish target joint pain from pain emanating from other musculoskeletal conditions. Conclusion. The J-MAP is a reliable, valid, and responsive measure for assessing joint-specific pain at a single time point, or changes over time for one or a group of patients with knee osteoarthritis. With this initial evidence of its psychometric rigor, further testing of the measurement properties of the J-MAP in other joints and in other populations should be undertaken.

KW - Equal interval scaling

KW - Joint pain

KW - Osteoarthritis

KW - Outcome measure

KW - Validity

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M3 - Article

VL - 30

SP - 534

EP - 543

JO - Journal of Rheumatology

JF - Journal of Rheumatology

SN - 0315-162X

IS - 3

ER -

ID: 2687926