Understanding the Gateway Hypothesis: Discusses the Concept of the Gateway Hypothesis and its Relevance to High School Students in Northern Cyprus
Table 2: The relationship between the age of initiation of smoking, the age of initiation of e-cigarettes and the age of initiation of cannabis among high school students in Northern Cyprus
| Variables | r |
| Age at first cigarette – Age at smoking every day | .526*** |
| Age at first cigarette – Age at first e-cigarette | .492*** |
| Age at smoking cigarettes every day – Age at smoking e-cigarettes every day | .333*** |
| First cigarette age – First cannabis age | .120*** |
| Every day smoking age – first cannabis age | .143*** |
| First E-cigarette age – first cannabis age | .114*** |
| Every day E-cigarette age – First cannabis age | .079** |