Based on 3 vignettes for which respondents were asked if they would follow a neighbor 's recommendation about a primary care physician and using multivariate analyses , respondents exposed to a neighbor 's recommendation and positive online physician ratings were significantly more likely to choose the recommended physician ( adjusted odds ratio : 3.0 [ 95 % confidence interval : 2.1-4 .4 ] ) than respondents exposed to the neighbor 's recommendation alone .