In short
The five patient retention metrics every hospital owner should track are: follow-up return rate, test completion rate, surgery conversion rate, missed-call rate, and the number of chronic-care patients who have become inactive. Together they show where patients leave your care between visits, which standard HIMS reports do not.
1. Follow-up return rate
Of the patients advised a review, how many returned within the advised window. Formula: follow-up visits completed on time ÷ follow-up visits advised. Track it per doctor and specialty.
2. Test completion rate
Of the investigations advised, how many were done, and how many at your own diagnostics. Formula: advised tests completed ÷ advised tests. Tests done elsewhere are often the first step to a patient being treated elsewhere.
3. Surgery conversion rate
Of the procedures advised, how many were scheduled. Formula: procedures scheduled ÷ procedures advised, over the same period. Review the open cases every week.
4. Missed-call rate
Of the calls received, how many went unanswered and were not called back. Formula: missed calls not returned ÷ calls received. Look at it by hour of day to match staffing to demand.
5. Inactive chronic-care patients
The number of diabetic, cardiac, thyroid or other chronic-care patients who have not visited in longer than their advised interval, for example six months. These patients rarely announce that they have moved on.
A worked example
| Metric | Example numbers | Result |
|---|---|---|
| Follow-up return rate | 300 reviews advised, 210 returned on time | 70% |
| Test completion rate | 500 tests advised, 380 completed | 76% |
| Surgery conversion rate | 40 procedures advised, 26 scheduled | 65% |
These numbers are an example to show the arithmetic, not a benchmark. Your own numbers are what matter, and the trend matters more than any single month.
How to start measuring
Most hospitals cannot calculate these today because advised next steps are not recorded as data. Start by recording what was advised at every consultation and discharge. The Patient Journey Audit helps you find which of these numbers you can already see and which you cannot.
Frequently asked questions
What is patient retention in a hospital?
The share of patients who continue their care with your hospital through follow-ups, tests, procedures and long-term care, rather than dropping off or going elsewhere.
How do you calculate follow-up return rate?
Divide follow-up visits completed within the advised window by follow-up visits advised over the same period.
Why don't HIMS reports show these numbers?
A HIMS records visits that happened. These metrics need a record of what was advised, so the gap between advised and completed can be measured.
Swati Mittal
Founder, HelloHospital. IIT and MICA alumna with more than ten years building healthcare technology.
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