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Table 4 Independent t test for effectiveness of PAIN+ and PubMed in retrieving evidence on pain for discipline-specific scenarios

From: The yield and usefulness of PAIN+ and PubMed databases for accessing research evidence on pain management: a randomized crossover trial

Effectiveness characteristic Electronic database N Mean SD T value P value
Usefulness rating of Top 3 [1- Not useful at all to 7- Very useful] PAIN+ 77 5.54 1.38 2.99 0.00*
PubMed 77 4.91 1.50
Rate the quality of paper
[1Very Low – 5 Very High]
PAIN+ 77 4.03 0.78 1.22 0.22
PubMed 77 3.92 0.75
Change practice based on the article retrieved
[1- Not likely at all to 7- Very likely]
PAIN+ 77 1.36 0.49 −3.23 0.00*
PubMed 77 1.58 0.62
Usefulness of the overall session
[1- Not useful at all to 7- Very useful]
PAIN+ 77 5.07 1.78 1.91 0.059
PubMed 77 4.62 1.88
  1. *significant at p < 0.05