Cross Sectional Study Design

A collection of vocabulary flashcards based on the key concepts from a lecture on Cross Sectional Study Design.

Cross-Sectional Study

A type of observational study that analyzes data from a population at a specific point in time.

Study Population

The group of individuals chosen for a study from a larger population.

Data Gathering

The process of collecting information for analysis.

Exposure

A condition or factor that may influence the occurrence of a disease.

Prevalence

The total number of cases of a disease in a population at a given time.

Prevalence Ratio

A measure that compares the prevalence of a disease in individuals with an exposure to those without.

Odds

The ratio of the probability of an event occurring to the probability of it not occurring.

Confidence Interval

A range of values derived from sample data that likely contains the true population parameter.

P-value

A measure of the evidence against a null hypothesis; lower values indicate stronger evidence.

Null Hypothesis

A statement that there is no effect or no difference; the hypothesis that is tested.

Association

A statistical relationship between two variables.

Active

Referring to individuals who engage in sufficient physical activity.

Not Active

Referring to individuals who do not engage in sufficient physical activity.

Coronary Heart Disease (CHD)

A disease characterized by the narrowing or blockage of coronary arteries.

2x2 Table

A matrix used to summarize the relationship between two categorical variables.

Actual Sample

The subset of the population that is observed or surveyed.

Target Population

The broader group to which study findings are intended to generalize.

Source Population

The larger population from which the study population is drawn.

Cumulative Incidence

The proportion of individuals in a population who develop a disease over a specified time period.

Odds Ratio

A measure used to compare the odds of an event occurring in two groups.

Health Behaviors

Practices that impact health, such as diet and exercise.

Activities Calculated

Physical activities assessed to determine participants' levels of activity.

Interpretation of PR

Analyzing the prevalence ratio to understand the relationship between exposure and disease.

Preventive Measure

Actions taken to reduce the risk of disease.

Collapse Categories

To combine various options into simplified classifications for analysis.

Diseased Group

Participants diagnosed with a specific illness or health condition.

Comparison Group

Participants that are not experiencing the specific illness or health condition.

Inactivity

Lack of sufficient physical activity that meets health guidelines.

Measure of Association

Statistics that quantify the relationship between exposure and disease.

Research Hypothesis

The hypothesis that proposes a potential outcome contrary to the null hypothesis.

Health Event

An occurrence related to health, such as disease or health behaviors.

Analytic Measure

Statistical methods used to analyze relationships between variables.

Healthcare Costs

The expenses associated with medical care and treatment.

Data Analysis

The process of evaluating data using analytical and statistical tools.

Statistical Error

The likelihood that observed results differ from the true values.

Risks of Bias

Factors that can distort true measurements or results.

Longitudinal Study

A study design that follows the same subjects over a period of time.

Survey Instruments

Tools used to collect data, such as questionnaires.

Physical Activity Recommendations

Guidelines that suggest levels of physical activity for health benefits.

Health Disparities

Differences in health outcomes and access to healthcare across different population groups.

Engagement Rates

A measure of how involved participants are in their health behaviors.

Temporal Relationships

The time-related factors that may affect study results.

Effect Size

A quantitative measure of the magnitude of a phenomenon.

Attributable Risk

The difference in risk between exposed and non-exposed groups.

Socioeconomic Status

The social and economic factors that influence an individual's position in society.

Screening Processes

Methods used to detect disease in asymptomatic individuals.

Statistical Significance

A measure of whether the result of a study is likely to be true, rather than due to random chance.

Health Surveillance

Ongoing systematic collection, analysis, and interpretation of health-related data.

Data Validity

The extent to which a study accurately measures what it claims to measure.

Incidence Rate

The number of new cases of a disease in a specified time period.

Biases in Research

Systematic errors that can lead to incorrect conclusions.

Data Collection Methods

The techniques used to gather information from participants.

Population Attributable Fraction

The proportion of incidents in the population that can be attributed to a specific exposure.

Statistical Models

Equations used to analyze data and make predictions.

Comorbidities

The presence of one or more additional conditions co-occurring with a primary condition.

Study Design

The framework or strategy for conducting research.

Hypothesis Testing

A method for testing a hypothesis about a parameter.