Nonprofit · HealthTech

Lung Cancer Risk Assessment Tool

A validated screening tool — built for the people who need it most.

We built a validated online lung cancer risk calculator for a leading Canadian health charity — implementing the clinically validated PLCOm2012 risk algorithm to help Canadians at elevated risk determine whether they qualify for low-dose CT lung screening.

Service
MVP Design & Build
Platform
Web
Timeline
2024
Industry
Nonprofit · HealthTech

Client and product names are kept confidential under NDA.

End-to-end delivery

Everything Delivered by One Studio.

PLCOm2012 Risk Algorithm Implementation
Interactive Risk Calculator
Screening Eligibility Assessment
Privacy-First Data Handling
Downloadable & Emailable Results
WCAG Accessibility Compliance
Multi-step Assessment Flow
Bilingual-ready Architecture
Crisis Resource Integration
Healthcare Provider Referral Guidance
The challenge

A Life-Saving Screening Decision — With No Accessible Way to Make It.

Low-dose CT lung screening can detect lung cancer early — but accessing it requires knowing whether you qualify, and that qualification depends on a complex clinical risk calculation that most Canadians had no way to perform without visiting a physician.

No Accessible Screening Tool

Canadians at elevated risk for lung cancer had no accessible, validated online tool to help them assess whether they qualified for low-dose CT screening. The decision typically required a physician visit.

A Complex Algorithm, Not a Simple Form

The PLCOm2012 model is a clinically validated risk algorithm with multiple inputs — age, BMI, smoking history, COPD status, prior cancer history, and more. Building it correctly required medical accuracy, not just a web form.

Privacy Was Non-Negotiable

Health data is sensitive. The tool needed to calculate risk without storing any user data server-side — giving users confidence that their health information remained private and local.

Accessibility for At-Risk Populations

The primary audience — adults 55+ with significant smoking histories — required an interface that was clear, simple, and accessible to users who may not be digitally confident.

Our solution

Clinically Accurate. Completely Private. Genuinely Accessible.

We built a tool that puts a validated clinical risk calculation directly in the hands of Canadians who need it — with zero data privacy risk, full WCAG accessibility, and a guided experience designed for the people it was built to serve.

01
PLCOm2012 Algorithm Implementation

We implemented the full PLCOm2012 lung cancer risk model in client-side JavaScript — accepting clinical inputs (age, height, weight, smoking history, COPD, prior cancer) and returning a validated 6-year risk estimate.

02
Multi-Step Assessment Flow

A guided, step-by-step form that walked users through the required clinical inputs clearly — reducing completion anxiety and ensuring accurate data entry for a medically sensitive calculation.

03
Privacy-First Architecture

All risk calculations happen client-side. No user data is sent to or stored on a server. Users can download or email their results directly from their browser — the charity never sees individual health data.

04
Accessibility & Readability

The tool was built to WCAG standards with clear typography, high-contrast design, simple language, and mobile-first layout — ensuring usability for the older, at-risk demographic it was built to serve.

Tech stack

Built on a Battle-Tested Stack.

JavaScript (Client-Side)

PLCOm2012 algorithm implemented entirely in the browser — no server required for calculation

WordPress

CMS integration with the Lung Health Foundation's existing website and content ecosystem

WCAG 2.1 AA

Accessibility standards compliance for readability, contrast, keyboard navigation, and screen reader support

Privacy-First Architecture

Zero server-side data storage; all calculations are local to the user's device

PDF / Email Export

Results downloadable as PDF or sendable by email directly from the browser without server storage

Responsive Design

Mobile-first layout ensuring usability on smartphones and tablets for all demographics

The results

A Validated Tool — Trusted by Canadians Who Need It.

Clinically Validated, Publicly Accessible

The PLCOm2012 calculator is live on the Lung Health Foundation's website, giving Canadians a trusted, validated tool to assess their lung cancer risk in 2–3 minutes.

Zero Data Privacy Risk

The privacy-first architecture means the charity handles no personal health data — eliminating compliance risk while building user trust in a medically sensitive context.

Built for the Right Audience

The accessible, step-by-step design achieves high completion rates with the primary demographic: adults 55+ with smoking histories who are often first-time users of health self-assessment tools.

"Build Me App's timeliness, responsiveness, and quality were impressive. They understood the sensitivity of what we were building and delivered something we're genuinely proud to put in front of Canadians."

Program Lead, Canadian Health Charity · Verified Review on Clutch

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