| Author | Sample | Age of onset | Ever use | Current use | Current daily use | Type of tobacco use |
|---|---|---|---|---|---|---|
| Sinha & Gupta [5] |
Male medical students (N = 400) | 15–17 | -- | 9.2% tobacco | 43% tobacco; 12.5% gutka | Smoking and tobacco chewing |
| Venkatraman et al. [8] |
Students of a medical college (N = 196) | Peak at Two years before and after joining the course | 33.2% | -- | -- | Smoking |
| Roy & Chakravarty [31] |
New admissions to medical colleges (N = 705, M 79.0%, F 20.0%) 90.1% in 17–20 age group | -- |
17.6% in males Nil in females | -- | 3.2% in males | Smoking |
| Sandell et al. [32] |
Students of medical colleges (N = 1600) | -- |
26.5%; 26.2% in males 0.25% in females | -- | -- | Smoking |
| Singh et al. [33] |
Students of a medical college (N = 672)Age group 17–24 | -- |
Annual prevalence 26.4% | -- | 9.4% | Smoking |