Table 2.
Beginning time and reasons of using electronic cigarettes among Korean asthmatic adolescents with experience of electronic cigarette use, 2015–2017 (N=1768)
| Beginning time of first EC use | Number (weighted %) |
|---|---|
| Before elementary school | 111 (6.35) |
| Elementary school | 143 (8.18) |
| Middle school | 960 (54.92) |
| High school | 534 (30.55) |
| Main reason of EC use | Number (weighted %) |
| Safety | 363 (20.53) |
| Smoking cessation aid | 200 (11.31) |
| Indoor smoking | 177 (10.01) |
| Easy access | 43 (2.43) |
| Appealing flavors | 371 (20.99) |
| No smell of conventional smoking | 127 (7.18) |
| Curiosity | 353 (19.97) |
| Other | 134 (7.58) |
For the main reasons for electronic cigarettes, participants chose only one answer among several examples. EC: electronic cigarettes.