31 Aug, 6 tweets, 2 min read
NSW Premier said today the rate of hospitalisation is about 5.5%. She has previously said it was about 5%

Either way, this is artificially low because of the way NSW defines active cases

Short 🧵- 1/6

#covid19nsw #COVID19Aus
Today, NSW reports 17,999 active cases

That's the sum of approx. last *30 days* of cases

There are 871 people in hospital

= 4.8% hospitalisation rate

In contrast ...

2/6
VIC reports 841 active cases today

That's the sum of approx. last *13 days* of cases

There are 52 people in hospital

= 6.2% hospitalisation rate

3/6
If NSW used VIC's definition of active cases, it would have a denominator of 11,938, not 17,999

That would mean the hospitalisation rate is 7.3%

At its peak, VIC had 653 people in hospital / 7871 active cases*

That's a hospitalisation rate of 8.3%

4/6
The calc above uses 7-day avg on 12/8/20 (peak avg actives)

At other times the rate seemed much higher, e.g 28/8: 521 / 3145 = 16.6%

But that's because thousands of people had quickly dropped off the actives count, while those in hospital were slower to leave

5/6
So, while it's not perfect, something closer to comparing apples with apples (maybe Pink Lady v Red Delicious) is to at least calculate the denominator in the same way. That gives:

NSW 2nd wave: 7.3%
VIC 2nd wave: 8.3%

The difference (right now) is not as big as we think it is

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# More from @juliette_io

5 Sep
So many numbers swirling around this weekend about NSW hospitalisation rates

3 big questions:

1. What on earth is the hospitalisation rate in NSW?

2. How is it calculated?

3. Should Hospital In The Home (HITH) be included?

Let's go into the weeds🌱

#covid19aus #covid19nsw
Q1 - What's the hospitalisation rate in NSW?

The NSW Surveillance Report now tells us this in black and white (it just added this new piece of info last week)

In the most recent report (data to Aug 21), it says it's 11%

i) Think of it as 'at least 11%' b/c it doesn't account for the lag between new cases and hospitalisations. The report itself acknowledges this

ii) Dr Jeremy McAnulty confirmed yday this rate *DOES NOT* include HITH (sorry for the caps, but that's important)
3 Sep
'case numbers will be higher, but the rate of hospitalisation will be much lower'

We're hearing this a lot. Is it happening yet? Are vaccines having a positive effect on hospitalisations?

The UK is a good example. This is what we want to see -

#covid19nsw #covid19aus #covidvic
Black dotted line = new cases
Blue solid line = hospitalisations

See how the blue curve stays low in the most recent wave, decoupling from cases in May?

'Decoupling' is the newest word in the data nerd lexicon, h/t @normanswan @teegstar 🤓
It's a similar picture in other countries which are on our radar as successful vaccination stories

Israel -
1 Sep
🧭NSW LGA monster wrap 👻 Cases
👍 = progress
👈 = big % changes + unlinked cases

⚫️ State wrap

🦠Cases - Last 14 days, +today
📍 12 LGAs of Concern: 10734, +932
📍 Western NSW: 582, +31
📍 Rest of Greater Sydney: 1515, +27
📍 Hunter New England: 44, +6

#covid19nsw #covid19aus
📍 Mid/North Coast: 1,+0
📍 Southern NSW: 3,+0

🔎Under Investigation - Total, +today
📍 12 LGAs of Concern: 10872,+645
📍 Western NSW: 368,+9
📍 Rest of Greater Sydney: 1122,+41
📍 Hunter New England: 78,+1
📍 Mid/North Coast: 1,+0
📍 Armidale/Northern Rivers: 1,+0
📍 Southern NSW: 2,-1
29 Aug
Just when I was about to have a whinge about lack of data this weekend @datansw came through with the goods at about 6pm

That means ...

🧭 It's the NSW LGA Monster Wrap 👻

Chart - LGAs of concern v Rest of Syd / NSW
*Yellow ~28 days behind blue*

#covid19aus #covid19nsw
🦠Cases (Last 14 days, +Saturday, +Sunday)

📍 12 LOCS: 9222, +1126, +746
📍 Western NSW: 513, +49, +21
📍 Rest of Greater Sydney: 1285, +188, +95
📍 Hunter New England: 72, +7, +3
📍 Mid/North Coast: 2, 0, 0
📍 Southern NSW: 2, 0, 0
📍 Armidale/Nthn Rivers: 0 last 14 days 👍
🔎Under Investigation (Total, +Saturday, +Sunday)

📍 12 LOCS: 8756, +770, +668
📍 Western NSW: 295, +17, +11
📍 Rest of Greater Sydney: 945, +106, +72
📍 Hunter New England: 74, +6, +0
📍 Mid/North Coast: 1, 0, 0
📍 Southern NSW: 1, 0, 0
📍 Armidale/Nthn Rivers: 1, 0, 0
29 Aug
Comparisons between current outbreaks in NSW and VIC - by request

1. Outbreak sum
2. Daily cases
4. Wilds

Note - VIC's July / Aug outbreaks separated into Delta 1 (pink) and Delta 2 (purple)

1. Outbreak sum -

#covidvic #covid19vic #covid19aus
1/7
Note re starting points -
Above = index case
All charts below = 10 local cases in one day

2. Daily cases -

2/7
3. Unlinked cases ('mystery' cases allocated unknown source + cases under investigation) -

3/7
27 Aug
🧭 Late-night NSW LGA monster wrap 👻

Watch 👀
Note 👈
Progress 👍

🦠Cases show: Last 14 days, +today
🔎Under Investigation shows: Total, +today

#COVID19nsw #covid19aus
📍 State wrap

🦠Cases

12 LGAs of Concern: 7984, +699
Western NSW: 483, +48
Rest of Greater Sydney: 1080, +123
Hunter New England: 85, +1
Mid/North Coast: 2, +0
Southern NSW: 2, +0
🔎Under Investigation

12 LGAs of Concern: 7318, +423
Western NSW: 267, +33
Rest of Greater Sydney: 393, +40
Hunter New England: 68, +2
Mid/North Coast: 2, +0
Armidale/Northern Rivers: 2, +0
Southern NSW: 1, +0