Core model input
Core blood markers
Albumin, creatinine, glucose, hs-CRP, lymphocytes, MCV, RDW, ALP and white cell count carry the estimate when they are available. Missing ones lower the stated confidence rather than being quietly imputed.
Biological age
A single estimate is a guess. A series is a signal.
Vector estimates biological age from your pathology biomarkers, standardises it against an age- and sex-matched population, and shows how the estimate moves across successive Australian reports.
The Longevity Vector
Two lines, and the distance between them.
Chronological age only ever goes one way, at one rate. A biological age estimate does not. Vector plots one against the other across every report in your record, because the gap and its direction carry more information than either line alone.
Inputs
What actually moves the number.
Vector separates what drives the estimate from what adds context around it, and says which is which rather than blending everything into one opaque score.
Secondary modifier
The wider panel
ApoB, HbA1c and the hormone markers add nuance where the supporting results exist, without overriding the core inputs.
Context only
Apple Health
HRV, resting heart rate, VO₂ max, sleep and training describe the months between reports. They inform the reading; they do not silently rewrite the estimate.
Why numbers differ
Two biological age tests, two different answers.
Different models use different populations, different variables and different calibrations, so their outputs are not interchangeable — comparing a result from one against a result from another tells you very little. What transfers between reports is the direction of a single consistent model applied to your own record.
Inspect Vector's methodologyWhat Vector keeps beside the estimate
- Which inputs were present, missing or stale at the time.
- A confidence level that reflects the data actually available.
- The collection date behind every contributing result.
- A population standardisation, so young adults are not flattered.
Track the direction, not a magic number.
Start with an existing Australian pathology report. The estimate gets more useful with every one you add.