4-Item Pain Intensity Measure (P4): Difference between revisions
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Patients are asked to circle a single number that corresponds to their pain at each time of day and with activity over the previous 2 days. The numbers are then totaled to yield a score out of 40. | Patients are asked to circle a single number that corresponds to their pain at each time of day and with activity over the previous 2 days. The numbers are then totaled to yield a score out of 40. | ||
== Evidence == | == Evidence == | ||
=== Reliability === | === Reliability === | ||
Test-retest reliability = 0.78 | Test-retest reliability = 0.78 | ||
=== Validity === | === Validity === | ||
Longitudinal validity = 0.63 and 0.57 between the retrospective rating of change and the P4 and 24-hour NPRS (z = 1.73, P<sub>1</sub> = .043), and 0.61 and 0.56 between the retrospective rating of change and the P4 and 2-day NPRS (z = 2.53, P<sub>1</sub> = .006), respectively. | Longitudinal validity = 0.63 and 0.57 between the retrospective rating of change and the P4 and 24-hour NPRS (z = 1.73, P<sub>1</sub> = .043), and 0.61 and 0.56 between the retrospective rating of change and the P4 and 2-day NPRS (z = 2.53, P<sub>1</sub> = .006), respectively. | ||
=== Responsiveness === | === Responsiveness === | ||
MDC<sub>90</sub> = 9.1 points or 22.2% of the scale range | MDC<sub>90</sub> = 9.1 points or 22.2% of the scale range | ||
== Recent Related Research (from [http://www.ncbi.nlm.nih.gov/pubmed/ Pubmed]) == | == Recent Related Research (from [http://www.ncbi.nlm.nih.gov/pubmed/ Pubmed]) == | ||
<div class="researchbox"> | <div class="researchbox"> | ||
<rss> | <rss>http://www.ncbi.nlm.nih.gov/entrez/eutils/erss.cgi?rss_guid=1d3MTz8-QHM_GItNR_r6Sd2JMMeJ4TF7GCftDwN62bEDZ4oE-L|charset=UTF-8|short|max=10</rss> | ||
</div> | </div> | ||
== References == | == References == | ||
<references /> | <references /> |
Revision as of 03:42, 7 March 2014
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Summary[edit | edit source]
The P4 consists of 4 items that address pain intensity in the morning, afternoon, evening, and with activity over the past 2 days. Each item is scored on a 0-to-10 NPRS, therefore the total P4 scores can vary from 0 (no pain) to 40 (the highest possible pain level). Most patients can complete the P4 in less than a minute and clinicians can score the measure in 5 seconds without the use of computational aids.
The purpose of developing this questionnaire was to attempt assessing change better than the two difference versions of a single-item NPRS.
Intended Population[edit | edit source]
Those over the age of 16 with non-chronic musculoskeletal pain. It has also been shown to be valid when used in conjunction with the WOMAC in people with osteoarthritis awaiting total knee or total hip replacements.[1]
Method of Use[edit | edit source]
Patients are asked to circle a single number that corresponds to their pain at each time of day and with activity over the previous 2 days. The numbers are then totaled to yield a score out of 40.
Evidence[edit | edit source]
Reliability[edit | edit source]
Test-retest reliability = 0.78
Validity[edit | edit source]
Longitudinal validity = 0.63 and 0.57 between the retrospective rating of change and the P4 and 24-hour NPRS (z = 1.73, P1 = .043), and 0.61 and 0.56 between the retrospective rating of change and the P4 and 2-day NPRS (z = 2.53, P1 = .006), respectively.
Responsiveness[edit | edit source]
MDC90 = 9.1 points or 22.2% of the scale range
Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
- ↑ Stratford PW, Dogra M, Woodhouse L, Kennedy DM, Spadoni GF. Validating Self-Report Measures of Pain and Function in Patients Undergoing Hip or Knee Arthroplasty. Physiother Can, 2009: 61; 189-194.