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Table 2 Inter-scale comparisons of five categories VAS versus VRS.

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

 

Unbiased VAS vs VRS

Equidistant VAS vs VRS

  

Pain etiology group

PA (%)

MA

PA (%)

MA

RP (95% CI)

RC (95% CI)

All, n = 81

73

0.93

44

0.96

0.18

(0.07 to 0.28)

0.43

(0.33 to 0.53)

Chron/idiop,

n = 30

67

0.95

60

0.99

0.06

(-0.07 to 0.20)

0.27

(0.12 to 0.42)

Nociceptive,

n = 31

77

0.90

29

0.91

0.44

(0.27 to 0.61)

0.56

(0.29 to 0.83)

Neuropathic,

n = 19

58

0.86

42

0.96

-0.02

(-0.25 to 0.21)

0.36

(0.08 to 0.64)

  1. Chron/idiop = Chronic/Idiopathic; PA = Percentage Agreement; MA = Monotonic Agreement; RP = Relative Position; RC = Relative Concentration; CI = Confidence Interval
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BMC Medical Research Methodology

ISSN: 1471-2288

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