The primary objective is to evaluate the effectiveness of telephone-based counseling in promoting smokeless tobacco cessation among residents of Minnesota. It is hypothesized that a greater proportion of individuals assigned to the proactive telephone calls will quit their use of smokeless tobacco products and all tobacco products compared to the comparison group not receiving those calls.
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Point prevalent abstinence from all tobacco after 3 months.
Prolonged abstinence from all tobacco after 3 months.
Number of subjects who abstained for at least 24 hours.