{ "resourceType" : "ValueSet", "id" : "R3-observation-statistics-for-R4", "text" : { "status" : "generated", "div" : "

Generated Narrative: ValueSet R3-observation-statistics-for-R4

This value set expansion contains 21 concepts.

CodeSystemDisplayDefinition
\u00a0\u00a0averagehttp://hl7.org/fhir/observation-statisticsAverage

The mean of N measurements over the stated period

\n
\u00a0\u00a0maximumhttp://hl7.org/fhir/observation-statisticsMaximum

The maximum value of N measurements over the stated period

\n
\u00a0\u00a0minimumhttp://hl7.org/fhir/observation-statisticsMinimum

The minimum value of N measurements over the stated period

\n
\u00a0\u00a0counthttp://hl7.org/fhir/observation-statisticsCount

The [number] of valid measurements over the stated period that contributed to the other statistical outputs

\n
\u00a0\u00a0totalcounthttp://hl7.org/fhir/observation-statisticsTotal Count

The total [number] of valid measurements over the stated period, including observations that were ignored because they did not contain valid result values

\n
\u00a0\u00a0medianhttp://hl7.org/fhir/observation-statisticsMedian

The median of N measurements over the stated period

\n
\u00a0\u00a0std-devhttp://hl7.org/fhir/observation-statisticsStandard Deviation

The standard deviation of N measurements over the stated period

\n
\u00a0\u00a0sumhttp://hl7.org/fhir/observation-statisticsSum

The sum of N measurements over the stated period

\n
\u00a0\u00a0variancehttp://hl7.org/fhir/observation-statisticsVariance

The variance of N measurements over the stated period

\n
\u00a0\u00a020-percenthttp://hl7.org/fhir/observation-statistics20th Percentile

The 20th Percentile of N measurements over the stated period

\n
\u00a0\u00a080-percenthttp://hl7.org/fhir/observation-statistics80th Percentile

The 80th Percentile of N measurements over the stated period

\n
\u00a0\u00a04-lowerhttp://hl7.org/fhir/observation-statisticsLower Quartile

The lower Quartile Boundary of N measurements over the stated period

\n
\u00a0\u00a04-upperhttp://hl7.org/fhir/observation-statisticsUpper Quartile

The upper Quartile Boundary of N measurements over the stated period

\n
\u00a0\u00a04-devhttp://hl7.org/fhir/observation-statisticsQuartile Deviation

The difference between the upper and lower Quartiles 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.

\n
\u00a0\u00a05-1http://hl7.org/fhir/observation-statistics1st 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

\n
\u00a0\u00a05-2http://hl7.org/fhir/observation-statistics2nd 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

\n
\u00a0\u00a05-3http://hl7.org/fhir/observation-statistics3rd 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

\n
\u00a0\u00a05-4http://hl7.org/fhir/observation-statistics4th 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

\n
\u00a0\u00a0skewhttp://hl7.org/fhir/observation-statisticsSkew

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

\n
\u00a0\u00a0kurtosishttp://hl7.org/fhir/observation-statisticsKurtosis

Kurtosis is a measure of the "tailedness" of the\u00a0probability distribution\u00a0of a\u00a0real-valued\u00a0random variable. Source: Wikipedia

\n
\u00a0\u00a0regressionhttp://hl7.org/fhir/observation-statisticsRegression

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 This Statistic code will return both a gradient and an intercept value.

\n
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Concepts not present here have direct `equivalent` mappings crossing all versions from R3 to R4.", "jurisdiction" : [{ "coding" : [{ "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm", "code" : "001", "display" : "World" }] }], "compose" : { "include" : [{ "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "concept" : [{ "code" : "average", "display" : "Average" }, { "code" : "maximum", "display" : "Maximum" }, { "code" : "minimum", "display" : "Minimum" }, { "code" : "count", "display" : "Count" }, { "code" : "totalcount", "display" : "Total Count" }, { "code" : "median", "display" : "Median" }, { "code" : "std-dev", "display" : "Standard Deviation" }, { "code" : "sum", "display" : "Sum" }, { "code" : "variance", "display" : "Variance" }, { "code" : "20-percent", "display" : "20th Percentile" }, { "code" : "80-percent", "display" : "80th Percentile" }, { "code" : "4-lower", "display" : "Lower Quartile" }, { "code" : "4-upper", "display" : "Upper Quartile" }, { "code" : "4-dev", "display" : "Quartile Deviation" }, { "code" : "5-1", "display" : "1st Quintile" }, { "code" : "5-2", "display" : "2nd Quintile" }, { "code" : "5-3", "display" : "3rd Quintile" }, { "code" : "5-4", "display" : "4th Quintile" }, { "code" : "skew", "display" : "Skew" }, { "code" : "kurtosis", "display" : "Kurtosis" }, { "code" : "regression", "display" : "Regression" }] }] }, "expansion" : { "timestamp" : "2025-09-01T22:35:57.42215+10:00", "contains" : [{ "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "average", "display" : "Average" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "maximum", "display" : "Maximum" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "minimum", "display" : "Minimum" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "count", "display" : "Count" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "totalcount", "display" : "Total Count" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "median", "display" : "Median" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "std-dev", "display" : "Standard Deviation" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "sum", "display" : "Sum" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "variance", "display" : "Variance" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "20-percent", "display" : "20th Percentile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "80-percent", "display" : "80th Percentile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "4-lower", "display" : "Lower Quartile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "4-upper", "display" : "Upper Quartile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "4-dev", "display" : "Quartile Deviation" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "5-1", "display" : "1st Quintile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "5-2", "display" : "2nd Quintile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "5-3", "display" : "3rd Quintile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "5-4", "display" : "4th Quintile" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "skew", "display" : "Skew" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "kurtosis", "display" : "Kurtosis" }, { "system" : "http://hl7.org/fhir/observation-statistics", "version" : "3.0.2", "code" : "regression", "display" : "Regression" }] } }