StatisticsCode
Statistics Code
activecomplete21 conceptsv5.0.0
The statistical operation parameter -"statistic" codes.
Metadata
hl7.org/fhir- Canonical URL
- http://hl7.org/fhir/observation-statistics
- All-Codes Value Set
- http://hl7.org/fhir/ValueSet/observation-statistics
- ID
- observation-statistics
- Version
- 5.0.0
- Publisher
- HL7 (FHIR Project)
- Case Sensitive
- Yes
Concepts (21)
averageAverage
The [mean](https://en.wikipedia.org/wiki/Arithmetic_mean) of N measurements over the stated period.
maximumMaximum
The [maximum](https://en.wikipedia.org/wiki/Maximal_element) value of N measurements over the stated period.
minimumMinimum
The [minimum](https://en.wikipedia.org/wiki/Minimal_element) value of N measurements over the stated period.
countCount
The [number] of valid measurements over the stated period that contributed to the other statistical outputs.
total-countTotal Count
The total [number] of valid measurements over the stated period, including observations that were ignored because they did not contain valid result values.
medianMedian
The [median](https://en.wikipedia.org/wiki/Median) of N measurements over the stated period.
std-devStandard Deviation
The [standard deviation](https://en.wikipedia.org/wiki/Standard_deviation) of N measurements over the stated period.
sumSum
The [sum](https://en.wikipedia.org/wiki/Summation) of N measurements over the stated period.
varianceVariance
The [variance](https://en.wikipedia.org/wiki/Variance) of N measurements over the stated period.
20-percent20th Percentile
The 20th [Percentile](https://en.wikipedia.org/wiki/Percentile) of N measurements over the stated period.
80-percent80th Percentile
The 80th [Percentile](https://en.wikipedia.org/wiki/Percentile) of N measurements over the stated period.
4-lowerLower Quartile
The lower [Quartile](https://en.wikipedia.org/wiki/Quartile) Boundary of N measurements over the stated period.
4-upperUpper Quartile
The upper [Quartile](https://en.wikipedia.org/wiki/Quartile) Boundary of N measurements over the stated period.
4-devQuartile Deviation
The difference between the upper and lower [Quartiles](https://en.wikipedia.org/wiki/Quartile) is called the Interquartile range. (IQR = Q3-Q1) Quartile deviation or Semi-interquartile range is one-half the difference between the first and the third quartiles.
5-11st Quintile
The lowest of four values that divide the N measurements into a frequency distribution of five classes with each containing one fifth of the total population.
5-22nd Quintile
The second of four values that divide the N measurements into a frequency distribution of five classes with each containing one fifth of the total population.
5-33rd Quintile
The third of four values that divide the N measurements into a frequency distribution of five classes with each containing one fifth of the total population.
5-44th Quintile
The fourth of four values that divide the N measurements into a frequency distribution of five classes with each containing one fifth of the total population.
skewSkew
Skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean. The skewness value can be positive or negative, or even undefined. Source: [Wikipedia](https://en.wikipedia.org/wiki/Skewness).
kurtosisKurtosis
Kurtosis is a measure of the "tailedness" of the probability distribution of a real-valued random variable. Source: [Wikipedia](https://en.wikipedia.org/wiki/Kurtosis).
regressionRegression
Linear regression is an approach for modeling two-dimensional sample points with one independent variable and one dependent variable (conventionally, the x and y coordinates in a Cartesian coordinate system) and finds a linear function (a non-vertical straight line) that, as accurately as possible, predicts the dependent variable values as a function of the independent variables. Source: [Wikipedia](https://en.wikipedia.org/wiki/Simple_linear_regression) This Statistic code will return both a gradient and an intercept value.