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Table 3 Test of intra-scale stability in VAS (0–100) and VRS.

From: Lack of interchangeability between visual analogue and verbal rating pain scales: a cross sectional description of pain etiology groups

  VAS    VRS   
Pain etiology group PA (%) RP (95% CI) RC (95% CI) PA (%) RP (95% CI) RC (95% CI)
All, n = 81 20 0.01
(-0.03 to 0.04)
-0.02
(-0.08 to 0.05)
94 0.03
(-0.01 to 0.06)
0.04
(-0.01 to 0.08)
Chron/idiop,
n = 30
20 -0.05
(-0.12 to 0.01)
-0.07
(-0.18 to 0.03)
97 0.02
(-0.02 to 0.07)
-0.01
(-0.04 to 0.02)
Nociceptive,
n = 31
26 0.07
(-0.004 to 0.15)
0.03
(-0.05 to 0.12)
87 0.06
(-0.04 to 0.16)
0.11
(-0.01 to 0.22)
Neuropathic,
n = 19
11 0.04
(-0.06 to 0.14)
-0.05
(-0.19 to 0.10)
100 0.00 0.00
  1. PA = Percentage Agreement; RP = Relative Position; RC = Relative Concentration; CI = Confidence Interval