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. 2019 Jan 15;9(1):e025255. doi: 10.1136/bmjopen-2018-025255

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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ORs for factors associated with having at least one advance care directive (n=1606). R²=0.17 (Nagelkerke). Model χ²(15)=206.47, p<0.0001. Bars represent 95% CIs. Factors for which the 95% CI does not include the value of 1 (indicated by the grey line) are statistically significant. An OR of 1 indicates no association between a predictor variable and the odds of having an ACD. †P<0.05 compared with reference category. ECOG, Eastern Cooperative Oncology Group; GP, general practice; RACF, residential aged care facility.