Indianapolis cholesterol screening 1987: does mass screening accomplish its goal?

Area of Science:

• Cardiovascular Health
• Public Health Screening
• Epidemiology

Background:

• Elevated total cholesterol is a significant risk factor for heart disease.
• Large-scale population screening aims to identify at-risk individuals for early intervention.
• Understanding public response to screening results is crucial for program effectiveness.

Purpose of the Study:

• To assess the impact of a city-wide population screening for elevated total cholesterol.
• To determine the proportion of individuals identified at moderate or high risk.
• To evaluate the follow-up actions taken by screened individuals based on their results.

Main Methods:

• A nine-day city-wide screening event was conducted in Indianapolis in February 1987.
• 29,954 individuals were screened for total plasma cholesterol concentrations.
• A follow-up questionnaire was sent to individuals identified as moderate or high risk.

Main Results:

• Over 32% of screened individuals were classified as moderate or high risk for heart disease.
• The screened population showed broad representation across age and education levels, though with demographic biases.
• 67% of respondents at high risk scheduled a physician visit after receiving their results; 53% of others contacted their physician for different reasons.

Conclusions:

• Mass cholesterol screening can effectively identify at-risk individuals within the participating population.
• Screened subjects demonstrated appropriate responses to elevated cholesterol results, seeking medical consultation.
• Mass screening is a valuable tool, but complementary strategies are needed to reach underrepresented groups and mitigate participation biases.