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. 2013 Jul 2;347:f3757. doi: 10.1136/bmj.f3757

Table 4.

 Scenarios for query on whether doctors should tell patients when they think a treatment is safe but no better than a placebo*

Scenarios % of participants (95% CI)
Definitely yes Probably yes Probably not Definitely not
If patients tell the doctor that they read about the treatment on the internet or in a magazine but have not tried it yet 63.3 (60.1 to 66.6) 22.7 (19.9 to 25.6) 8.3 (6.5 to 10.2) 5.6 (4.0 to 7.2)
If patients tell the doctor that a good friend is using the treatment and felt it was really helping 49.6 (46.2 to 53.0) 27.7 (24.7 to 30.7) 14.6 (12.2 to 17.0) 8.1 (6.2 to 9.90)
If patients tell the doctor that they have been using the treatment for the past two weeks and it seems to be helping 33.9 (30.7 to 37.1) 22.5 (19.7 to 25.3) 25.4 (22.4 to 28.3) 18.2 (15.6 to 20.8)

*See box, scenario 4.