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Table 4 Percent of Correct Responses to Individual Questions

From: Critical appraisal skills of family physicians in Ontario, Canada

  At least one correct answer Two correct answers
RCT methods 242 (85%) 126 (44%)
Diagnostic test methods 210 (70%) 129 (45%)
Systematic review methods 132 (46%) 51 (18%)
  Correct Answer
NNT 137 (48%)
Sensitivity 164 (57%)
Specificity 137 (47%)
Test best for ruling out? 123 (43%)
SR: Pain decrease 24 hrs 202 (71%)
SR: Pain decrease 2–7 days 184 (64%)