Demographic characteristics (n=30)
| Demographic | Ex-IQOS use | Current IQOS use | Total |
| (n=8) | (n=22) | (n=30) | |
| Age (years) | |||
| 18–24 | 4 | 3 | 7 |
| 25–34 | 1 | 7 | 8 |
| 35–49 | 3 | 9 | 12 |
| 50–59 | 0 | 3 | 3 |
| Total age range | 18–48 | 22–59 | 18–59 |
| Median | 25 | 36.5 | 32.5 |
| Mean | 28.6 | 36.7 | 34.6 |
| Gender | |||
| Male | 4 | 15 | 19 |
| Female | 4 | 7 | 11 |
| Ethnicity | |||
| White British | 2 | 6 | 8 |
| White Other* | 5 | 12 | 17 |
| Asian/Asian British† | 0 | 3 | 3 |
| Black/Black British‡ | 1 | 0 | 1 |
| Arabic | 0 | 1 | 1 |
| Occupation | |||
| Professional/qualified work | 2 | 7 | 9 |
| Managerial/senior administrator | 2 | 7 | 9 |
| Clerical/junior administrator | 2 | 6 | 8 |
| Sales/services | 0 | 1 | 1 |
| Semi-skilled/unskilled labour | 1 | 0 | 1 |
| Never worked | 1 | 1 | 2 |
| Current working status | |||
| Full time (30+ hours) | 2 | 18 | 20 |
| Part-time | 2 | 1 | 3 |
| Currently unemployed | 1 | 0 | 1 |
| Part-time student, part-time employment | 2 | 2 | 4 |
| Full-time student | 1 | 1 | 2 |
*These included 1 Australian, 3 Bulgarians, 1 German, 1 Irish, 3 Italians, 1 Lithuanian, 1 Northern Irish, 2 Portuguese, 1 Russian, 1 Swiss, 1 Turkish and 1 Ukrainian.
†These included 2 Indian British and 1 Sri Lankan British.
‡This participant was Black British.