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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