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Sexually Transmitted Infections

Sexually Transmitted Infections

Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...

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Updated: Jul 25, 2025

Measuring Delay Discounting in Humans Using an Adjusting Amount Task

Measuring Delay Discounting in Humans Using an Adjusting Amount Task

Published on: January 9, 2016

Delay Discounting for HIV/STI Testing.

Val Wongsomboon¹, Gregory D Webster²

¹Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, 625 N Michigan Ave., Chicago, IL USA.

Sexuality Research & Social Policy : Journal of NSRC : SR & SP

|June 26, 2023

Summary

This summary is machine-generated.

Healthcare wait times significantly reduce HIV/STI testing likelihood. People are less likely to get tested for sexually transmitted infections (STIs) the longer they have to wait, especially for milder ones.

Keywords:

Chlamydia Delay discounting Gonorrhea HIV STI Testing Waiting

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Last Updated: Jul 25, 2025

Measuring Delay Discounting in Humans Using an Adjusting Amount Task

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Published on: January 9, 2016

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Area of Science:

Behavioral Economics
Public Health
Infectious Disease Prevention

Background:

Wait times in healthcare represent a significant barrier to timely Human Immunodeficiency Virus (HIV) and sexually transmitted infection (STI) testing.
Understanding factors influencing testing decisions is crucial for effective public health interventions.

Purpose of the Study:

To examine the impact of delay (wait time) on the likelihood of undergoing HIV/STI testing using a delay discounting approach.
To investigate whether perceived severity mediates the effect of delay on STI testing decisions.

Main Methods:

Two studies (N=421, N=392) employed delay discounting tasks where participants reported likelihood of testing based on varied wait times.
Participants were assigned to chlamydia/gonorrhea or HIV testing groups.
Study 2 introduced a smaller, sooner outcome (consultation without testing) to explore mediation by perceived severity.

Main Results:

A systematic reduction in testing likelihood was observed as a function of increased delay to testing, demonstrating delay discounting for HIV/STI tests.
The effect of delay on testing decisions was more pronounced for chlamydia/gonorrhea testing compared to HIV testing.
Perceived severity of the STIs statistically mediated the observed discounting effect.

Conclusions:

Evidence supports delay discounting for HIV/STI testing, with decisions being more sensitive to delays for less severe infections.
Reducing healthcare wait times, particularly for milder STIs, is essential to mitigate potential serious health consequences from untreated infections.