measures in public health. It's used to clarify and forecast how people's health behavior change over
time when faced with various issues. It's one of the most common models for analyzing health-related
behaviors.
The Health Belief Model was first originated in the 1950s when Godfrey Hochbaum, Irwin Rosenstock,
and Stephen Kegels noticed there was a low participation in free TB Screening. They first thought that it
has to deal with the motivation of the people. The Health Belief Model started with 4 constructs and
had added 2 more constructs over time. Namely Perceived Susceptibility, Perceived Severity, Perceived
Benefits, Perceived Barriers, Cues to Action, and Self-efficacy. The constructs would then aid in what
needs to be changed or how interventions will be then formulated for that specific person. And yes,
applying the Health Belief Model would be a different case for every individual.
In the sense of behavior change models like the health belief model, several studies have looked into
how socio behavioral influences screening acceptance. And thus, the researchers used Health Belief
Model, to have a greater understanding of the determinants that affect colorectal cancer screening and
as screening even in individuals with average risk remains suboptimal in many populations. They then
created a system review of the cross-sectional study designs and reviewed previous studies relating to
colorectal cancer screening and health belief model as it is found to be essential in the creation of
successful, evidence-based approaches to improve people's health behavior. As they chose cross-
sectional designs as they are widely used to the prevalence of diseases in clinic-based sample and is
relatively inexpensive. But before that, they used a priori protocol in commencing this review. In which
questions being formulated is first defined by using the PICOS framework.
Wherein to reduce the chances of missing any related papers during the initial analysis of titles and
abstracts, search words were kept wide and extended to all fields. Free text key words and Boolean
operators were used to build the selection method. Interventional studies or review articles that did not
use quantitative approach in the research design, did not include the health belief model, or were not
linked to overall colorectal cancer screening acceptance were all omitted. There were then found
articles that is directly associated with colorectal cancer screening and health belief model constructs.
Specifically, 12 articles in perceived susceptibility, 5 articles in perceived severity, 13 articles in
perceived benefits, 9 articles in cues to action, 8 articles in self-efficacy, and around 19 articles in
perceived barriers but is considered as inversely associated with colorectal cancer screening. Such
articles were found to be using different set and numbers of questionnaires in formulating health belief
model. And as all of the research used were cross-sectional, they used the Joanna Briggs Institute
Critical Appraisal Tools checklist for analytical cross-sectional studies to measure probability of biases.
Seven experiments lacked consistent sample eligibility criteria or omitted to identify the research
environment and population.
Despite the constraints, their analysis showed that the health belief model's frameworks are largely
compatible with screening purpose and behavior across countries and with latest research. By
recognizing widely held perceptions of susceptibility, severity, benefits, barriers, cues to action, and self-
efficacy they were able to modify to be more successful at raising colorectal cancer awareness in the
general population.
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