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. 2015 Jul 30;16:92. doi: 10.1186/s12875-015-0311-0

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© Lum et al. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Sources of information for advice, by domain (N = 457). More than one response allowed; “lawyer” not available for driving question. Bars represent 95 % Confidence Intervals. **P < 0.001; *P < 0.01 under Chi-square (or t-test for lawyer)