Situations and roles of cannabis versus cigarette use: Integrating ecological momentary assessment with qualitative mapping interviews.

Use of both cannabis and tobacco has surpassed use of tobacco alone among young adults in California. To better understand why, we collected data with 32 young adults ages 18-30 in Northern California who regularly used cigarettes and cannabis and had diverse sexual, gender, racial, and ethnic identities. Geographically-explicit ecological momentary assessment (EMA; 30 days) was integrated with qualitative mapping interviews.

Exploring multiple drug use by integrating mobile health and qualitative mapping methods - An individual case study.

Background: Multiple drug use involves particular pleasures and risks, and is disproportionately practiced by some minority and socially marginalized groups. The unique patterns, intentions, and social contexts of multiple drug use for these groups are poorly understood.

Methods: Our mixed method integrates geo-enabled smartphone survey data collection with a qualitative mapping interview method.