College students reported more hits and more negative consequences when using joints or blunts compared to bongs

Participants reported more hits on days using joints, vapes, blunts, or other modes compared to bong use. Greater odds of negative consequences occurred on days using joints or blunts compared to bongs. Plant cannabis was the most common type and bongs the most common mode.

Ecological momentary assessment study over 4 weekends with 88 college students aged 18-25 who endorsed weekly simultaneous alcohol and cannabis use. Cannabis use behavior was assessed during morning prompts including type, mode, number of hits, and consequences.

As cannabis legalization expands and consumption methods diversify, understanding which modes of use are linked to heavier consumption and more negative outcomes can inform harm reduction messaging for young adults.

This is one of few studies using real-time daily assessment to compare how different cannabis consumption modes relate to use intensity and consequences, moving beyond the typical cross-sectional approach.

Small sample of 88 students from one university. All participants used both alcohol and cannabis simultaneously, limiting generalizability. Self-reported data collected the morning after use. Short 4-weekend observation period.