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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 4.

Relative risk ratio of predictors on proportion of each information source compared with common sense or personal experience* (N=3443 information source rated as helpful by patients)

Effect Information Source Relative Risk Ratio(RRR) 95% CI of RRR p-value
Lower Bound Upper Bound
Male Health care professional 0.745 0.535 1.037 0.081
Internet 0.351 0.176 0.703 0.0032**
Literature 0.469 0.183 1.200 0.114
Multiple 0.662 0.320 1.369 0.266
Social support 1.016 0.520 1.987 0.962
TV ads 3.882 1.094 13.771 0.0358**
Homosexual Health care professional 1.056 0.754 1.479 0.751
Internet 4.217 2.035 8.738 0.0001**
Literature 1.953 0.744 5.132 0.174
Multiple 2.779 1.301 5.938 0.0084**
Social support 1.403 0.717 2.746 0.323
TV ads 0.656 0.206 2.087 0.475
Bisexual Health care professional 0.889 0.615 1.286 0.534
Internet 4.190 1.976 8.885 0.0002**
Literature 1.434 0.513 4.003 0.492
Multiple 2.113 0.960 4.653 0.063
Social support 0.916 0.418 2.009 0.826
TV ads 0.571 0.141 2.319 0.434
Black Health care professional 0.906 0.745 1.102 0.323
Internet 1.026 0.648 1.623 0.913
Literature 1.293 0.764 2.190 0.338
Multiple 0.960 0.632 1.457 0.847
Social support 1.816 1.274 2.589 0.001**
TV ads 0.681 0.308 1.507 0.343
Age=> 65 Health care professional 1.480 1.042 2.104 0.0288**
Internet 1.358 0.593 3.112 0.469
Literature 1.677 0.691 4.072 0.253
Multiple 2.382 1.311 4.327 0.0044**
Social support 0.540 0.192 1.523 0.244
TV ads 0.742 0.174 3.167 0.687
Previous AIDS diagnosis Health care professional 1.474 1.256 1.729 <.0001**
Internet 0.577 0.384 0.867 0.0082**
Literature 1.120 0.705 1.778 0.632
Multiple 1.035 0.748 1.433 0.835
Social support 0.892 0.646 1.232 0.488
TV ads 0.610 0.339 1.098 0.099
Less than a college degree Health care professional 1.070 0.853 1.343 0.557
Internet 2.379 1.501 3.769 0.0002**
Literature 1.098 0.581 2.076 0.773
Multiple 1.106 0.677 1.807 0.687
Social support 1.524 0.997 2.330 0.052
TV ads 0.813 0.316 2.091 0.668
*

Results are from multi-nominal logistic regression model with random effect of symptoms.

**

Significant at 0.05 level.