---
title: Population Comparison
slug: population-comparison
description: This document explores the availability of population comparisons for HRV Score and heart rate, with other biomarkers on the way. Discover how users can compare their measured values to population, subpopulation, or demographic norms, using data from over
docTags: 
createdAt: 2022-04-01T13:21:23.000Z
---

Population Comparisons are available for HRV Score and heart rate (other biomarkers coming soon!). These ranges can show a user how their measured value compares to population, subpopulation, or demographic norms. The population comparison results come from data from over 660,000 unique users across all ages, genders, fitness levels and over 80 countries and  short Readiness/Recovery measurements (1-5 minutes).

For more information on how to get population comparison results, check out the **Population Comparison Data** `GET` endpoint on our [](https://docs.spren.com/spren-api/endpoints)[Spren API](http://docs.spren.com/spren-api) page!

## Input Requirements

In order to receive subpopulation heart rate variability and/or heart rate results, age and/or gender needs to be posted.

::::Tabs
:::Tab{title="Gender Subpopulation Filters"}
- male
- female
- other
:::

:::Tab{title="Age Subpopulation Filters"}
- 18-25
- 26-35
- 36-45
- 46-55
- 56-65
- 66-1000
:::
::::

## Output Requirements

The mean and range data for the requested biomarker will be returned based on the population or subpopulation filters.

For more information on population comparison results, check out the **Population Comparison Data** `GET` endpoint on our [](https://docs.spren.com/spren-api/endpoints)[Spren API](http://docs.spren.com/spren-api) page!

## Design Example

The most common way of displaying the population comparison data is using a scale with the end ranges and population average for returned population data, although the population comparison data display is completely customizable to match the branding and user experience goals of your app. The population data presented can be for the global data (from over 700, 000 users) or filtered based on demographics such as age and gender. 

::Image[]{src="https://api.archbee.com/api/optimize/muUaBUNi076h0Gp5cltSi/yM3_VMJ0cOIj0c6ooNnAu_population-comparison.png" size="44" width="1317" height="1239" caption="Example display of HRV population comparison data." position="center" showCaption="true"}