Figure 2.

Time delay in follow-up days between first intake of methylphenidate and death. On the y-axis, the number of cases of death are given, while the x-axis represents the number of days of follow-up. In non-users with the same reference date as users (upper part of figure 2), this delay is spread over several years, whereas it is focused in the early weeks of intake in users (lower part of figure 2).