Caesars Entertainment shareholders solidly rejected a proposal to study the economic effects of smoke-free casinos, the last of three recent efforts to pursue the policy through publicly traded companies.

Public health and labor advocates put forward an effort to get the Reno-based, nationally dominant gaming company to commission and disclose a report on potential cost savings from implementing a smoke-free policy at its 52 U.S. properties. The Americans for Nonsmokers’ Rights Foundation and health care provider Trinity Health were behind the proposal that was voted on during the Caesars’ annual shareholders meeting Tuesday.

About 80 percent of votes cast were against the proposal, according to a Securities and Exchange Commission filing Friday.

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