Youth daily exposure to tobacco outlets and cigarette smoking behaviors: does exposure within activity space matter?

Aims To examine whether daily exposure to tobacco outlets within activity spaces is associated with cigarette smoking and with the number of cigarettes smoked by youth that day. Design The study used geographic ecological momentary assessment (GEMA) data that combined daily surveys with ecological momentary assessment of global positioning systems (GPS) using geographic information systems (GIS) to allow for real‐time data collection of...