# Market sizing & epidemiology
> A defensible epi-anchored sizing model the team can take to the board.
Source: https://www.visfo.health/projects/market-sizing-epi
Tags: Sprint

_A defensible epi-anchored sizing model the team can take to the board._

We build the epidemiology base (incidence, prevalence, treated population, line-of-therapy splits) and turn it into a sizing model with sources and assumptions named. Written up as a report with a live sizing portal the team can run against.

## What it is

A defensible, epi-anchored sizing model the team can take to the board. Incidence, prevalence, treated population and line-of-therapy splits with sources and assumptions named on the row rather than buried in a tab.

Built for asset and portfolio teams where the gap between the forecast number and a defensible sizing is the difference between leadership belief and outside scrutiny.

## How we run it

1. **Frame** — Lock the indication, the geography, the population definition and the lines of therapy the model has to address.

2. **Ingest** — Pull epidemiology sources, claims and registry analogues, prior sizings and competitor public estimates into one structured base.

3. **Synthesise** — Build the sizing model with sources per row, surface the conflicting estimates rather than averaging them away, and segment by line, severity and sub-population.

4. **Deliver** — Ship the written sizing report and stand up a live sizing portal the team interrogates.

## What you get

- Written sizing report with method, sources and assumptions

- Working sizing model with row-level provenance

- Segmented cuts by line of therapy and sub-population

- Sensitivity ranges with the conditions that bound each

- Live sizing portal for leadership and finance