Digital Health Metrics

Topics A–Z

All 31 topics in alphabetical order. For reading order, see the contents .

A

  • Appointment No-Show Rate Patient engagement and access the oldest operational metric in healthcare, and one of the best-evidenced targets for digital reminders

B

  • Bed-Day Reduction Digital care operations and safety inpatient bed days saved by shifting recovery to a virtual ward, always reported alongside a safety metric
  • Biometric Improvement Rate Clinical outcomes and quality the share of patients achieving a clinically meaningful change in a tracked biometric such as HbA1c or BMI
  • Biometric Stabilization Rate Clinical outcomes and quality sustained control within a target range, as distinct from a one-off improvement

C

D

  • DAU/MAU Stickiness Ratio Patient engagement and access the standard product-analytics measure of engagement intensity across a whole user base
  • Device Uptime Rate Technical and operational infrastructure the foundational infrastructure metric underneath every remote monitoring programme
  • Digital Access Rate Digital health equity the precondition metric for every other digital health measure in this book
  • Digital Literacy Rate Digital health equity whether patients who do have access can actually use it unaided
  • Digital Referral Turnaround Time Digital care operations and safety the process metric that shows whether an e-referral system is actually saving time

E

  • Emergency Department Diversion Rate Financial and economic value patient contacts safely redirected away from the ED, always reported alongside a missed-emergency safety metric
  • ePROM Completion Rate Clinical outcomes and quality the completion rate for electronic patient-reported outcome measures, and why a declining rate can itself be a clinical signal

H

  • Hospital Readmission Rate Clinical outcomes and quality the metric most directly tied to payer economics and value-based care contracts

I

  • ISO/TS 82304-2 Evaluation frameworks the international technical specification behind most health and wellness app quality labels

L

  • LTV to CAC Ratio Marketing and growth economics lifetime value against true acquisition cost; 3:1 is the widely cited sustainable baseline

M

  • Marketing Efficiency Ratio Marketing and growth economics total revenue over total marketing spend, an independent check against platform-reported ROAS
  • Medication Adherence Rate Clinical outcomes and quality the proportion of days a patient had access to their medication as prescribed

P

  • Patient Engagement Consistency Rate Patient engagement and access how regularly a patient interacts with a digital tool over time, as distinct from whether they have used it at all
  • Patient Net Promoter Score Patient engagement and access the widely used, and widely criticized, single-question satisfaction metric
  • Patient Portal Adoption Rate Patient engagement and access registration, activation, and active use; three different rates too often conflated as one
  • Physician Burnout Rate Technical and operational infrastructure tracked alongside clinician-facing digital tool burden, since badly designed software is a documented contributor

R

S

  • System Usability Scale Score Patient engagement and access a standardised 10-item questionnaire quantifying how usable a piece of software actually is

T

  • Telehealth Visit Rate Patient engagement and access the share of care delivered remotely, and why video and telephone should never be reported as one number
  • Time to Intervention Digital care operations and safety how quickly a clinical team responds to an automated health alert
  • Triage Routing Accuracy Clinical outcomes and quality whether an AI or digital triage tool correctly routes a patient to the right level of care
  • True Customer Acquisition Cost Marketing and growth economics the fully loaded cost of acquiring one new patient, commonly undercounted by 30-50%

U

  • User Retention Rate Patient engagement and access the cohort retention curve that separates a product with a sustainable use pattern from one riding a wave of novelty

W