Effects of Using E-Cigarettes on Lungs in People With HIV (HBS Ancillary)

This project is an ancillary study to the HBS Study. Inclusion Criteria for that IRB approved study are:

• documented HIV-infection
• in care at an HIV specialty clinic
• age ≥ 18 years.

Exclusion criteria

for the HBS Study are:

• a pacemaker or other implanted electronic device
• pregnant women, prisoners, cognitively-impaired subjects.

For this ancillary, the experimental group must actively use at least one of the following: e-cigarettes, e-liquid vapes, burning leaf tobacco cigarettes, or inhaled burning leaf marijuana (cannabis). The control group will have no use of e-cigarettes or vape or active smoking in the past year.

Participants must be willing to archive data and biological samples for future use.

Exclusion from the ancillary are:

• overt respiratory or oral cavity disease
• acute illness in the past 4 weeks
• active cancer
• active weight loss program
• any other medical, psychiatric or behavioral factors that, in the judgment of the PI may interfere with study participation or ability to follow the protocol