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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: J Am Dent Assoc. 2018 Feb 14;149(4):273–280.e3. doi: 10.1016/j.adaj.2017.10.016

Appendix Table 1.

Characteristics of referendums and source of articles

Portland, Oregon Wichita, Kansas San Antonio, Texas
Referendum year 1956 1962 1978 1980 2013 1964 1978 2012 1966 1985 2000
Referendum decision Against Against For Against Against Against Against Against Against Against For
% voting in favor of fluoridation 42% 45% 51% 46% 39% 37% 46% 40% 32% 48% 53%
Number of votes cast 181,140 144,300 139,373 115,408 164,301 50,997 84,139 129,199 38,855 81,373 292,811
Population size 373,628 372,676 382,619 366,383 733,764 254,698 276,554 356,724 587,718 785,880 1,385,695
News media type
 Article 14 13 14 10 12 19 5 23 5 19 26
 Editorial 1 2 2 2 12 7 4 2 12 6 18
 Advertisement 0 0 0 0 0 1 1 0 4 0 0
Total 15 15 16 12 24 27 10 25 21 25 44