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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Am J Prev Med. 2014 May;46(5):487–495. doi: 10.1016/j.amepre.2014.01.011

Figure 1.

Figure 1

Sample sizes for the evaluation of rolling, cross-sectional and cohort smoker samples and monthly campaign media buys: Philadelphia antismoking campaign, 2010–2012

Targeted rating points (TRPs) are a standard estimate of how many people were potentially in the target audience (for this campaign, adults aged 25– 54 years) for purchased advertising.