Surveillance and Epi Investigation Flashcards
Basic stat measures for descriptive stats
Measures of frequency
Measures of central tendency
Measures central dispersion
Percentiles
What are the measures of frequency
Ratio
Rates
Proportions
Relationship between two groups, offers insights into proportion and connections inherent within the data
Ratio
Occurrence of particular event within specified population during defined period, facilitate comparisons and trend assessments across different populations and time intervals
Rate
Relative magnitude of a specific category or event within a larger context. Show distribution and relevance if events within a dataset
Proportion
Percentage of people in population who have a specific condition at a particular moment
Prevalence
How many new cases of a particular condition occur within a population during a set period of time
Incidence
Number of deaths that happen within a population during a specific period of time
Mortality rate
Percentage of people who were exposed to a risk factor and ended up developing the condition
Attack rate
Average of the values in a data srt
Mean
Middle value in a ranked data set
Median
Mode
Value that appears most freq in a dataset
Which measure of central tendency is impacted by outliers?
Mean
Span between the smallest and largest value within a data set
Range
Average square difference between each data point and the mean. It provides a comprehensive understanding of how individual values vary from the data set Central value
Variance
Difference between an individual data point and the mean of the data set. It gives us a sense of how much each value deviates from the average
Deviation
Distribution and values around the mean. It quantifies the extent to which data points deviate from the central value helping us gauge overall variability.
Standard deviation
Set of methods that can be used for improving systems, processes, and outcomes
Statistical process control
Variation that is inherent to the system
Common cause variation
Variation that is indicative of exceptional events or changes
Special cause variation
Best process control chart for less than 25 points
Run chart
Best chart for 25-50 points
Control chart
Evaluates whether differences observed in data are significant and not due to chance
Hypothesis testing
Provide range within which population parameters are likely to exist
Confidence intervals