期刊
PAIN
卷 163, 期 12, 页码 E1184-E1191出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/j.pain.0000000000002692
关键词
Face Pain Scale-Revised; Numerical Rating Scale; Pain assessment; Reliability; Verbal Rating Scale; Validity; Visual Analogue Scale
资金
- Siriraj research fund, Faculty of Medicine Siriraj Hospital, Mahidol University [R016331070]
This study examined the stability and validity of four commonly used pain intensity scales (VAS, VRS-6, NRS-11, FPS-R). The results showed that NRS-11 and VAS had better test-retest stability, and NRS-11 demonstrated the highest sensitivity. FPS-R could be considered as an alternative for individuals who may have difficulty understanding or using NRS-11.
Prior research supports the validity and short-term test-retest stability of 4 commonly used scales for assessing pain intensity (Visual Analogue Scale [VAS], 6-point Verbal Rating Scale [VRS-6], Numerical Rating Scale [NRS-11], and Face Pain Scale-Revised [FPS-R]). However, the relative stability and ability of these measures to detect changes in pain intensity over longer time periods have not yet been examined, although knowledge regarding these psychometric issues is important for selecting from among these measures. To address this knowledge gap, we administered these scales assessing worst and average pain intensity to 250 chronic pain outpatients on 2 occasions, a little over 6 weeks apart on average. All 4 scales were found to be valid for detecting decreases in pain, and the VAS, NRS-11, and FPS-R evidenced the most validity for detecting increases in pain. The NRS-11 and VAS evidenced better test-retest stability than the VRS-6 and FPS-R. Age affected the ability of the VRS-6 for detecting improvement in worst pain, as well as the ability of the VAS for detecting worsening in both worst and average pain. However, the psychometric properties of the scales were not influenced by education level. Overall, the NRS-11 emerged as showing the most sensitivity and stability. The FPS-R seems to be a good second choice to consider for samples of individuals who might have difficulty understanding or using the NRS-11.
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