Worldwide, the HIV epidemic is concentrated among hidden populations (ie, female sex
workers, men who have sex with men, and people who inject drugs). To understand the true …

Background Large linked healthcare administrative datasets could be used to monitor
programs providing prevention and treatment services to people who inject drugs (PWID) …

Background Good estimates of key population sizes are critical for appropriating resources
to prevent HIV infection. We conducted two capture/recapture studies to estimate the number …

Abstract Background In the United States, injection is an increasingly common route of
administration for opioids and other substances. Estimates of the number of persons who …

Asymptomatic and pauci‐symptomatic presentations of COVID‐19 along with restrictive
testing protocols result in undetected COVID‐19 cases. Estimating undetected cases is …

No current estimates exist for the size of the population of people who inject drugs (PWID) in
the District of Columbia (DC). The WHO/UNAIDS Guidelines on Estimating the Size of …

Abstract The Census of Agriculture is conducted every 5 years, in years ending in 2 and 7.
The Census list frame is incomplete, resulting in undercoverage. Not all operations on the …

Capture‐recapture, a method devised for estimating wildlife population sizes using
technologies like bird banding, has been repurposed for use with “rare and elusive” human …

The majority of attempts to enumerate the homeless population rely on point-in-time or
shelter counts, which can be costly and inaccurate. As an alternative, we use electronic …

Abstract Background: In 2016, BC Canada declared a public health emergency in response
to increasing illicit drug overdose deaths. Previous research has shown that adverse social …