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Value Of Pain Intensity

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VAS is formed by a 100 mm horizontal line anchored on both ends, with the left end denotes the minimum score and the other end as the maximum score. VAS anchors, time period of reporting and instructions of use vary depending on the intended use of the scale. For pain intensity, the left-most anchor indicates “no pain,” which is a score of 0 and the right-most anchor indicates “worst imaginable pain,” which is a score of 100 on a 100 mm scale. Pain VAS is self-completed by the participant where they are asked to draw a line perpendicular to the VAS line at the point that represents their pain intensity. Value of pain intensity is obtained by measuring the distance from the “no pain” anchor to the perpendicular line drawn by the participant.

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