Journal of Environmental and Public Health / 2018 / Article / Tab 4

Research Article

Formaldehyde Vapor Concentration in Electronic Cigarettes and Health Complaints of Electronic Cigarettes Smokers in Indonesia

Table 4

Frequency of daily smoking of electronic cigarettes in personal vapor community in Surabaya city in 2016.

Frequency (time)Percentage ()

18.0
212.0
312.0
48.0
54.0
68.0
114.0
124.0
204.0
Unclassified36.0

Source: primary data.