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

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

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	2.99	0.00*
Rate the quality of paper [1Very Low – 5 Very High]	PAIN⁺	77	4.03	0.78	1.22	0.22
Rate the quality of paper [1Very Low – 5 Very High]	PubMed	77	3.92	0.75	1.22	0.22
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	−3.23	0.00*
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	1.91	0.059

ISSN: 2057-0082