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Table 4 Percentage of physicians who correctly selected all the items of the short or long checklist for pretreatment assessment for TNF-blocker therapy and to specific items, by questionnaire A, B and C and pairwise chi-square comparison

From: Effect of response format for clinical vignettes on reporting quality of physician practice

 

Questionnaire A

Questionnaire B

Questionnaire C

A and B comparison

p-value

A and C

comparison

p-value

B and C

comparison

p-value

A, B and C

comparison

p-value

Long version of checklist

0.0

5.0

5.9

0.0293

0.0143

1.0000

0.0167

Short version of checklist

50.4

84.0

95.0

<0.0001

<0.0001

<0.0001

0.0060

Chose item "chest X-rays"

84.6

96.6

98.3

0.0015

0.0002

0.6835

<0.0001

Chose item "tuberculin skin test"

65.8

85.7

95.8

0.0004

< 0.0001

0.0072

<0.0001

  1. Questionnaire A: open-ended; Questionnaire B: closed-ended with deceptive items; Questionnaire C: closed-ended