CPHA Health Informatics & Data Analytics Flashcards
6 cards from real CPHA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPHA Health Informatics & Data Analytics flashcards as text
Which type of public health data system links records across multiple databases using unique identifiers to follow individuals over time?
Answer: Longitudinal Linked Data System
Longitudinal linked data systems connect records from disparate sources (e.g., birth records, Medicaid claims, hospital discharge data) using common identifiers to track health outcomes over time.
The Behavioral Risk Factor Surveillance System (BRFSS) collects health data primarily through which method?
Answer: Telephone interviews
BRFSS is the world's largest telephone survey system, collecting state-level data on health risk behaviors and preventive health practices among US adults.
Which concept in informatics describes ensuring that data values accurately represent real-world conditions and are free from errors?
Answer: Data Validity
Data validity refers to the degree to which data values accurately represent the true real-world state they are intended to measure.
A health department uses geographic information systems (GIS) to map disease incidence rates by zip code. Which type of analysis is this?
Answer: Spatial Epidemiology
Spatial epidemiology studies the geographic distribution of disease to identify spatial patterns, clusters, and environmental or social determinants of health.
Which term describes a situation where a statistical association between two variables exists only because both are related to a third variable not included in the analysis?
Answer: Confounding
Confounding occurs when a third variable is associated with both the exposure and outcome, creating a spurious or distorted association between them.
Under HIPAA, which of the following is considered Protected Health Information (PHI) that must be de-identified before public release?
Answer: Individual patient diagnosis with zip code and date of service
HIPAA defines PHI as individually identifiable health information; a patient's diagnosis combined with geographic identifiers (zip code) and dates of service constitutes PHI requiring de-identification.