LEC Flashcards
measures the willingness of individuals and organizations to participate in surveillance activities. It hinges on the ease and convenience of reporting or performing surveillance tasks.
Acceptability
denotes the adaptability of surveillance methods to changing conditions or information needs without significant additional costs.
Flexibility
assesses the accuracy of reported cases or identified epidemics.
Predictive value positive
minimizes false reports, avoiding unnecessary investigations and resource wastage. It ensures that interventions are targeted appropriately, mitigating public anxiety caused by unwarranted alerts.
Predictive Value Positive
refers to the completeness and validity of surveillance data. Evaluating the percentage of unknown or blank values for key variables, such as age, ensures data integrity.
Quality
measures the accuracy with which surveillance data reflect the incidence of a health event within a population by person, place, or time.
Representativeness
depends on factors like acceptability and sensitivity.
Representativeness
gauges the ability of surveillance to detect the intended health problem. It assesses the system’s ability to capture a significant proportion of actual cases.
Sensitivity
evaluates the ease of operating the surveillance system and its components. Simple processes, including straightforward case definitions and data collection methods, enhance efficiency and encourage participation among stakeholders.
Simplicity
assesses the reliability of surveillance data collection and management methods. It ensures the consistent availability of data, supported by reliable computer systems and sufficient resources.
Stability
emphasizes the prompt availability of data for informed decision-making. Delays in data collection, analysis, or dissemination hinder public health agencies’ ability to respond swiftly to emerging threats.
Timeliness
examines whether surveillance data accurately measure the intended health outcomes. It verifies if the system detects outbreaks and distinguishes them from non-outbreak situations.
Validity
Sources and Methods for Gathering Data
• Individual persons
• Environment
• Healthcare providers and facilities
• Data collected for non-health-related purposes (taxation, sales, or administrative records)
METHODS OF DATA COLLECTION
Primary and secondary sources
Documents
Secondary
