tobacco prevention and cessation & | Prevention Education Tobacco Prevention & Cessation, the

Serious Outcomes Surveillance (SOS) Network of the Canadian Immunization Research Network (CIRN)

A California study assessing the impact of a statewide Tobacco 21 (T21) law on access to tobacco products and purchasing behaviors found that 82% of e-cigarette purchasers aged 18-20 reported that they were not refused sale in the past 30 days despite being underage

[25] Calls to improve the evidence base have been made, for example through increased use of anthropometric outcome measures [8], consensus and consistency in defining and measuring environmental factors and weight-related outcomes [14], [26] improved reporting of study methods [27], improved sensitivity and specificity in approaches being used (e.g., measures appropriate to the population of interest) [28], and use of more complete datasets (e.g., via ground-truthing using in-person [29] or virtual audits [30]

E-liquid A blend of flavorings, vegetable glycerin, propylene glycol, and nicotine (optional)