Complex sentence: Through efficacy trials conducted throughout the United States with 1000 youths, the quit rate was 26% as compared to the American Lung Associations Tobacco Free Kids program, which had a 14% quit rate.
Split into simpler sentences: Through efficacy trials conducted throughout the United States with 1000 youths. The quit rate was 26% as compared to the American Lung Associations Tobacco Free Kids program, which had a 14% quit rate.