Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling the Public Health Impact of E-Cigarettes on Adolescents and
  Adults   Since the introduction of electronic cigarettes to the United States market
in 2007, vaping prevalence has surged in both adult and adolescent populations.
E-cigarettes are advertised as a safer alternative to traditional cigarettes
and as a method of smoking cessation, but the U.S. government and health
professionals are concerned that e-cigarettes attract young non-smokers. Here,
we develop and analyze a dynamical systems model of competition between
traditional and electronic cigarettes for users. With this model, we predict
the change in smoking prevalence due to the introduction of vaping, and we
determine the conditions under which e-cigarettes present a net public health
benefit or harm to society.

21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga