Editorial Office of Chinese Journal of Public Health:

As the first author (_) or corresponding author (_) of this article (title: ____________; manuscript number: _____), I have read the proofs sent by the editorial office carefully. I agree with the editorial changes to the text and the technical processing of figures and tables, except those noted below:

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I declare that if there were any mistake after the proofreading of this article, the authors are responsible for all consequences.

All authors should specify their contributions and sign the names

The first author: _________ Signature: _________

The second author: _________ Signature: _________

The third author: _________Signature: _________

The fourth author: _________Signature: _________

The fifth author: _________Signature: _________

The sixth author: _________Signature: _________

The seventh author: _________Signature: _________

The eighth author: _________Signature: _________

The ninth author: _________Signature: _________

The tenth author: _________Signature: _________

The eleventh author: _________ Signature: _________

The twelfth author: _________Signature: _________

Corresponding author: _________Signature: _________

Date: _________

To note: (1) The proofreading is the last opportunity for authors to check missing points and make corrections, thus please be careful. (2) For any change in funding project, author address, and author order, relevant proof or certificates shall be provided. Please contact the responsible editor for details. (3) Authors contribution can be described by following aspects: experiment design, implementing research plan, data collecting, data analyzing/interpreting, drafting, critical review of the intellectual content of the draft, statistical analysis, obtaining research funding, political support and material support.

Proofreading confirmation and Author's contribution.docx