Johns Hopkins Medicine engagement report
@HopkinsMedicine - 612K followers on X
Measured over 25 original posts from a 30-day window, last computed on October 8, 2026.
Engagement
A typical post picks up 21 interactions against 612K followers, an engagement rate of 0.003%. Measured over 25 original posts, its engagement rate beats 21% of 21,185 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 4.9K times each, and 0.43% of those impressions turn into an interaction. That is about 0.798% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.2 post a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 15:00 UTC, and Monday is the busiest day of the week. Of the 25 posts sampled, 52% carry an image or video and 88% link out. The account's strongest tracked post pulled 159 interactions, about 7.6x its own typical post. Recurring topics include #acscc26, #brainaneurysmawarenessmonth, #prostatecancerawareness.
Measured over 25 original posts from a 30-day window, last computed on October 8, 2026. Recurring tags: #acscc26, #brainaneurysmawarenessmonth, #prostatecancerawareness.
Compared with accounts its own size
Johns Hopkins Medicine's engagement rate beats 21% of the tracked X accounts closest to it in follower count (21,185 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.
On engagement per impression rather than per follower it beats 27% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.
Where this sits in the catalog
At 0.003%, Johns Hopkins Medicine sits below the 10th percentile of the 212,567 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.025%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.025% |
| 50th percentile | 0.146% |
| 75th percentile | 0.696% |
| 90th percentile | 2.61% |
| 99th percentile | 82.7% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 15:00 UTC, and Monday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 52% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 88% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | no effect | -2% to -1% | 42K |
- 52% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 88% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
- Its average post runs 229 characters, which falls in the 180 - 280 characters band. Across the catalog, posts of 180 to 280 characters match the same accounts' other posts almost exactly.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- Aug 17, 20267.6x their median
Dr. Aimee Armstrong, and Dr. Stephanie Fuller, are co-directors of the Blalock-Taussig-Thomas Pediatric and Congenital Heart Center and the only female pairing in the United States of a director of pediatric cardiology and a chief of pediatric and congenital cardiac surgery. Together, they are transforming the future of pediatric cardiology at Johns Hopkins Medicine while honoring its rich legacy of innovation and leadership. https://t.co/qV1O70JHmf
- Sep 24, 20263.1x their median
The @CiccaroneCenter @HopkinsHeart & @HopkinsMedicine is super proud to announce the Promotion of Dr. Francoise Marvel @DoctorMarvelMD - a distinguished Blumenthal Scholar in Preventive Cardiology - to Associate Professor of Medicine at The JHU! #🐦🥍🫀⛳️🏏⚾️⚽️🏈 https://t.co/Z0zieN2RhA
- Aug 18, 20262.6x their median
Menopause can make weight management feel harder, but it’s not just about willpower. Hormonal changes, aging, and muscle loss all play a role. Strength training, regular movement, quality sleep and a healthy diet can make a difference. https://t.co/9NJFT8DPsi https://t.co/gAOYaA5CXU
- Aug 9, 20262.3x their median
Suffering from gas? Here are 7 foods to avoid: https://t.co/lKX9PABxEB https://t.co/VqYiCLNpAt
- Jul 31, 20262.2x their median
After a minimally invasive surgical approach to remove fused bone at @HopkinsKids, followed by helmet therapy, Fitz' skull is growing into a normal shape. See his story below: https://t.co/Yt2JkbOALW
- Sep 13, 20262.1x their median
What to know about sepsis, a life-threatening condition caused by the body’s extreme response to infection that affects 1.7 million U.S. adults every year. https://t.co/lJVSmpotVH
- Aug 16, 20262.1x their median
Do you have gout? Eating a healthy diet, staying well-hydrated and avoiding certain foods can reduce the risk of painful flares, says Dr. Myma Albayda, a rheumatologist who treats people with gout. https://t.co/8Yto6w4IOK
- Sep 27, 20261.9x their median
Genetic differences? Brain tumors, just like humans, are unique. Learn how those differences impact long-term survival rates. https://t.co/hwdetcY6KW https://t.co/bwpLNJrtiz
- Sep 30, 20261.9x their median
While there’s no guaranteed way to prevent prostate cancer, healthy habits can help lower your risk. Focus on a balanced diet, regular exercise, maintaining a healthy weight and keeping up with recommended screenings. #ProstateCancerAwareness https://t.co/WNC6FACEOv https://t.co/CGlZJwtkV6
- Jul 28, 20261.8x their median
When 3-month-old Clara was bitten by the family dog, she had significant trauma to her skull, face, scalp and ear. Her family traveled to Johns Hopkins and met with pediatric plastic and reconstructive surgeon Dr. Rick Redett, who performed reconstructive procedures on Clara. https://t.co/yobjCNJmvy
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 21 interactions against 612K followers, an engagement rate of 0.003%. Measured over 25 original posts, its engagement rate beats 21% of 21,185 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 4.9K times each, and 0.43% of those impressions turn into an interaction. That is about 0.798% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.2 post a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 15:00 UTC, and Monday is the busiest day of the week. Of the 25 posts sampled, 52% carry an image or video and 88% link out. The account's strongest tracked post pulled 159 interactions, about 7.6x its own typical post. Recurring topics include #acscc26, #brainaneurysmawarenessmonth, #prostatecancerawareness.
- What is Johns Hopkins Medicine's engagement rate on X?
- Johns Hopkins Medicine (@HopkinsMedicine) has an engagement rate of 0.003%, based on the median interactions across 25 original posts from the last 30 days against 611,727 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.003%, Johns Hopkins Medicine sits below the 10th percentile of the 212,567 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @HopkinsMedicine have real engagement?
- Its engagement rate beats 21% of the tracked X accounts closest to it in follower count (21,185 accounts), which puts it in the bottom quarter for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
- When does @HopkinsMedicine post?
- Most posts go out around 15:00 UTC, and Monday is its busiest day, at roughly 1.17 posts per day across the measured window.