Cigarette use was based on items from the smoking module of the Diagnostic Interview Schedule (DIS), administered to subjects in adulthood by trained interviewers.34 Transitions through stages of cigarette use were assessed via retrospectively reported ages at initiation, regular use, and c
Cigarette use was based on items from the
smoking module of the Diagnostic Interview Schedule (DIS), administered to subjects in adulthood by trained interviewers.34 Transitions through stages of
cigarette use were assessed via retrospectively reported ages at initiation, regular use, and c
cigarette use were assessed via retrospectively reported ages at
initiation, regular use, and cessation.