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Professor Chris Whitty engagement report

@CMO_England - 330K followers on X

Measured over 1 original post from a 30-day window, last computed on October 10, 2026.

Engagement

Per follower
0.061%
of 330K followers
Per impression
0.941%
21K views on a typical post
Reach
6.50%
of its followers see a post
Typical post
202
interactions (median)
Saved
0.042%
9 bookmarks on a typical post
Posting rate
0.03/day
active 3% of days
Peak time
14:00 UTC
Tuesday

Early reading. We have captured 1 original post for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.

A typical post picks up 202 interactions against 330K followers, an engagement rate of 0.061%. Posts are seen about 21K times each, and 0.941% of those impressions turn into an interaction. That is about 6.51% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.03 posts a day over the last 30 days, though only 3% of days saw any activity at all. Most posts go out around 14:00 UTC, and Tuesday is the busiest day of the week. Of the 1 posts sampled, 100% carry an image or video. The account's strongest tracked post pulled 7.9K interactions. Only 1 original post have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.

Measured over 1 original post from a 30-day window, last computed on October 10, 2026.

Where this sits in the catalog

At 0.061%, Professor Chris Whitty sits above the 25th percentile of the 205,676 accounts in this comparison. That places it in the below the median band, which runs 0.024% to 0.143%.

p100.004%
p250.024%
p50 (median)0.143%
p750.679%
p902.56%
p9982.4%
Engagement rate as a share of followers, across the 205,676 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,897 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.004%
25th percentile0.024%
50th percentile0.143%
75th percentile0.679%
90th percentile2.56%
99th percentile82.4%

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 14:00 UTC, and Tuesday 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.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 14:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 14:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
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 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Tuesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Tuesday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

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.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video100% of posts+111%+108% to +115%34K
Outbound link0% of posts-41%-42% to -40%32K
Typical length-no effect-2% to -1%42K
  • 100% 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.
  • 0% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
  • Its average post runs 262 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

  • May 30, 2023

    The key points about vaping (E-cigarettes) can be easily summarised. If you smoke, vaping is much safer; if you don’t smoke, don’t vape; marketing vapes to children is utterly unacceptable. I expand on these points in the article below. https://t.co/S6hrC0Y7BF

    5.8K1.4K561145987K viewsView on X
  • Jan 23, 202426x their median

    Cervical cancer will be almost eliminated in coming decades if HPV vaccination rates are high in children. In England HPV vaccination coverage in schools is rising again but still below pre-pandemic levels. Please encourage children to get protected. https://t.co/MCNy9DDmpB

    3.9K1.0K31780421K viewsView on X
  • Aug 4, 202420x their median

    I’m proud that people from nearly 200 countries work in our NHS. I completely condemn this racist violence and stand with our staff and the communities they live and work in. Thank you to our emergency services who are working hard to keep everyone safe.

    3.1K70713151595K viewsView on X
  • Jun 18, 202618x their median

    A new study shows HPV vaccination in England has led to the number of deaths from cervical cancer falling to zero in vaccinated women under 25. Please encourage all eligible children to get vaccinated. https://t.co/YuX2BCR6gz https://t.co/Hbb3u4NSXS

    2.4K76638887200K viewsView on X
  • Dec 3, 202415x their median

    Influenza is now rising rapidly. Antiviral 'flu medicines can now be used in primary care. If you are eligible please get vaccinated. For healthcare workers, being vaccinated helps protect you, your patients and colleagues. https://t.co/eo5MFz6Hvs https://t.co/F00W1nI6oh

    7663631.7K165313K viewsView on X
  • Oct 4, 202312x their median

    Smoking causes multiple harms including stillbirths, lung disease, heart disease, stroke and dementia. A quarter of cancer deaths are caused by smoking. Most smokers regret starting. This will prevent ill health, disability and death. https://t.co/0e8uNUItSd

    1.4K353569116355K viewsView on X
  • Dec 15, 202311x their median

    Influenza is rising from a low base and COVID is increasing. Antiviral 'flu medicines can now be used in primary care. If you are eligible please get vaccinated. For healthcare workers, vaccination helps protect you, your patients and your colleagues. https://t.co/Vx5IwDlwcZ https://t.co/AVY8Qf2Jgv

    1.0K480660108414K viewsView on X
  • Nov 10, 202310x their median

    My annual report focuses on health in an ageing society. People are living longer than previous generations. It is something to celebrate but we need to maximise quality of life and minimise the time people spend in ill health. (1/5) https://t.co/XgUTdWI1G9

    1.3K455174121386K viewsView on X
  • Nov 5, 20249.1x their median

    Secondhand smoke harms children and medically vulnerable adults. Most smokers wish they had never started but were trapped by addiction at a young age. Marketing vapes at children is utterly unacceptable. A new Bill in Parliament will address these. https://t.co/DbVjVuYBlP

    1.2K20637339174K viewsView on X
  • Nov 26, 20248.0x their median

    MPs vote on the Tobacco and Vapes Bill today Cigarettes trap people by addiction taking choice away; many die as a result. Secondhand smoke inhaled by non-smokers harms them without their choice Vapes can help smokers quit but marketing vapes at children is utterly unacceptable

    94318045438136K viewsView on X

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.

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Reading these numbers

A typical post picks up 202 interactions against 330K followers, an engagement rate of 0.061%. Posts are seen about 21K times each, and 0.941% of those impressions turn into an interaction. That is about 6.51% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.03 posts a day over the last 30 days, though only 3% of days saw any activity at all. Most posts go out around 14:00 UTC, and Tuesday is the busiest day of the week. Of the 1 posts sampled, 100% carry an image or video. The account's strongest tracked post pulled 7.9K interactions. Only 1 original post have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.

What is Professor Chris Whitty's engagement rate on X?
Professor Chris Whitty (@CMO_England) has an engagement rate of 0.061%, based on the median interactions across 1 original posts from the last 30 days against 330,101 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.061%, Professor Chris Whitty sits above the 25th percentile of the 205,676 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 @CMO_England have real engagement?
There is not yet enough sample to rank this account against others of its size.
When does @CMO_England post?
Most posts go out around 14:00 UTC, and Tuesday is its busiest day, at roughly 0.03 posts per day across the measured window.

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