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. 2016 Jun 25;5(4):130–136. doi: 10.1302/2046-3758.54.2000578

Table III.

Intrinsic factors of research studies affecting clinical decision-making

Item asked Number (%) of 327 respondents
The results of the following study designs have the potential to influence a change in my clinical practice (select all that apply to you)
 Meta-analysis 244 (75)
 Systematic review 215 (66)
 Randomised controlled trial 307 (94)
 Cohort study 149 (46)
 Case-control study 155 (47)
 Cross-sectional study 71 (22)
 Case series 105 (32)
 Case report 54 (17)
 Narrative review 46 (14)
 Editorial 66 (20)
For a study to influence my clinical practice it would require a sample size of (select all that apply to you)
 1 to 10 25 (7.7)
 11 to 50 52 (16)
 51 to 100 142 (43)
 101 to 500 190 (58)
 501 to 1000 138 (42)
 > 1001 118 (36)
For a study to influence my clinical practice the results should report (select all that apply to you)
 p-value 235 (72)
 95% confidence interval 221 (68)
 Relative risk reduction 107 (33)
 Absolute risk reduction 79 (24)
 Odds ratio 86 (26)
 Number needed to treat 120 (37)
 Mean difference 42 (13)
 Minimally important difference 75 (23)
 Sensitivity analysis 83 (25)
 Adjusted analysis 41 (13)
 None of the above 41 (13)
The study designs that have had the most profound impact on my practice in the last five years are (select all that apply to you)
 Meta-analysis 192 (59)
 Systematic review 166 (51)
 Randomised controlled trial 270 (83)
 Cohort study 58 (18)
 Case-control study 78 (24)
 Cross-sectional study 24 (7.3)
 Case series 46 (14)
 Case report 16 (4.9)
 Narrative review 17 (5.2)
 Editorial 21 (6.4)