A three item, self report assessment: 1) If one of your best friends offered you an unflavored cigarillos/filtered cigar would you use it? 2) If one of your best friends offered you a cigarillos/filtered cigar flavored with menthol or mint would you use it? 3) If one of your best friends offered you a cigarillos/filtered cigar flavored with fruit, candy, alcohol, or some other sweet flavor, would you use it? Responses to each item are made on a 10-point scale where 1 = definitely not; and 10 = definitely yes and responses across the three items are summed for a total scale score. Total scale scores are dichotomized: scores of 3 are coded as '0' (no risk) and any score greater than 3 is coded as '1' (at risk). Outcome is proportion at risk of LCC use (number of participants at risk over number of participants within condition).

The tobacco power wall and number of tobacco products appear in a format sized between the control and small conditions: a medium sized power wall with a medium number of products displayed (defined here as two large cabinets).

Tobacco power wall size and tobacco products displayed: The intervention varies the size of the tobacco power wall and number of tobacco products displayed on it.

Total of all reporting groups

The tobacco power wall and number of tobacco products appear in their smallest format: small power wall with a small number of products displayed (defined here as one large cabinet)

Tobacco power wall size and tobacco products displayed: The intervention varies the size of the tobacco power wall and number of tobacco products displayed on it.

The tobacco power wall and number of tobacco products appear in a format sized between the control and small conditions: a medium sized power wall with a medium number of products displayed (defined here as two large cabinets).

Tobacco power wall size and tobacco products displayed: The intervention varies the size of the tobacco power wall and number of tobacco products displayed on it.

A three item, self-report assessment: 1) If one of your best friends offered you an unflavored vaping product would you use it? 2) If one of your best friends offered you a vaping product flavored with menthol or mint, would you use it? 3) If one of your best friends offered you a vaping product flavored with fruit, candy, alcohol or non-alcohol drink, or some other sweet flavor, would you use it? Responses to each item are made on a 10-point scale where 1 = definitely not; and 10 = definitely yes and responses across the three items are summed for a total scale score. Total scale scores are dichotomized: scores of 3 are coded as '0' (no risk) and any score greater than 3 is coded as '1' (at risk). Outcome is proportion at risk of ENDS use (number of participants at risk over number of participants within condition).

Sample sizes may differ from baseline because of missing data.

A three item self report assessment: : 1) If one of your best friends offered you unflavored smokeless tobacco would you use it? 2) If one of your best friends offered you smokeless tobacco flavored with flavored with menthol, mint, spearmint, or wintergreen would you use it? 3) If one of your best friends offered you smokeless tobacco flavored with fruit would you use it? Responses to each item are made on a 10-point scale where 1 = definitely not; and 10 = definitely yes and responses across the three items are summed for a total scale score. Total scale scores are dichotomized: scores of 3 are coded as '0' (no risk) and any score greater than 3 is coded as '1' (at risk).Outcome is proportion at risk of smokeless tobacco use (number of participants at risk over number of participants within condition).

Sample size may differ from baseline due to missing data.

A three item, self report assessment: 1) If one of your best friends offered you an unflavored cigarillos/filtered cigar would you use it? 2) If one of your best friends offered you a cigarillos/filtered cigar flavored with menthol or mint would you use it? 3) If one of your best friends offered you a cigarillos/filtered cigar flavored with fruit, candy, alcohol, or some other sweet flavor, would you use it? Responses to each item are made on a 10-point scale where 1 = definitely not; and 10 = definitely yes and responses across the three items are summed for a total scale score. Total scale scores are dichotomized: scores of 3 are coded as '0' (no risk) and any score greater than 3 is coded as '1' (at risk). Outcome is proportion at risk of LCC use (number of participants at risk over number of participants within condition).

Sample sizes may differ from baseline due to missing data.

The tobacco power wall and number of tobacco products appear in their smallest format: small power wall with a small number of products displayed (defined here as one large cabinet)

Tobacco power wall size and tobacco products displayed: The intervention varies the size of the tobacco power wall and number of tobacco products displayed on it.

The tobacco power wall and number of tobacco products appear in a format sized between the control and small conditions: a medium sized power wall with a medium number of products displayed (defined here as two large cabinets).

Tobacco power wall size and tobacco products displayed: The intervention varies the size of the tobacco power wall and number of tobacco products displayed on it.