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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Int J Med Inform. 2017 Dec 9;111:1–6. doi: 10.1016/j.ijmedinf.2017.12.002

Table 3.

Multi-nominal logistic regression assessing the helpfulness of each information source compared with common sense/self-experience* (N=5235 information sources)

Effect Information Source Relative Risk Ratio(RRR) 95% CI of RRR p-value
Lower Bound Upper Bound
Helpful Health care professional 1.382 1.204 1.587 <.0001**
Helpful Internet 1.092 0.798 1.496 0.582
Helpful Literature 0.857 0.600 1.224 0.395
Helpful Multiple 1.775 1.296 2.430 <.0001**
Helpful Social support 1.059 0.813 1.380 0.671
Helpful TV ads 0.908 0.582 1.416 0.669
*

effects of age, gender, sex orientation, AIDS status, annual income, education level, as well as random effects of symptom are controlled in the model.

**

significant at 0.05 level.