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Table 1 Sensitivity and specificity of the questionnaires: correlation between the interview data and the questionnaire data, n = 23 [change in questionnaire score refers to a positive change of at least the minimal important difference, as described in methods section]

From: Measuring changes in self-concept: a qualitative evaluation of outcome questionnaires in people having acupuncture for their chronic health problems

 

Sensitivity (proportion of patients whose interview data does indicate changes in self-concept that show a change in questionnaire score)

Specificity (proportion of patients whose interview data indicates no changes in self-concept that don't show a change in questionnaire score)

Wellbeing questionnaire, W-BQ12

66%

75%

Patient enablement instrument, PEI

80%

88%

Arizona Integrated Outcome Scale, AIOS

60%

33%

One or both of the W-BQ12 and PEI

87%

63%