Monday, June 29, 2020

Reopening/Resurging: Ohio Data



Ohio has had a resurging of the virus in its South Western Counties. Below is the Gov DeWine's press conference last Thursday. He used to do these every day. Now he does them about twice a week, usually Tuesday and Thursday. The conference is now about sixty minutes. The first fifteen minutes are mostly about the problem in SW Ohio and contains a series of slides with explanations by someone from the area. Last half are questions from press. You might be amused by his ducking questions about Pence, Trump and Republican legislatures.


Ohio Governor Mike DeWine - COVID-19 Update | June 25, 2020


Below the break is my explanation of each slide which you can see

POWER POINT PRESENTATION HERE



SLIDE #1  BASIC MONITORING SYSTEM

Number of new cases: 892 last 24 hours vs 294 for 21 day average; the early warning signal but it has to be interpreted in light of the testing that is increasing being made available.

Deaths 17 versus 21 for 21 day average; this indicator is expected to be last to be effected by the surge if everything else is working fine.

Hospitalizations 55 versus 57 for 21 day average; this is a measure of how much virus is impacting hospitalization; this needs to be managed if the normal treatment of other illness is not to be impacted as it was during the last surge

ICU Admissions 11 versus 13 for 21 day average; an indicator of the

Ohio declared an emergency the day the first case in Ohio was confirmed. Governor and Health Director were very proactive, organizing the whole health system public and private to have all the resources needed, many of which were in short supply. DeWine emphasize Ohio solutions, i.e. not be dependent on the foreign supplies or even the national supplies.


SLIDE #2 Diagnostic Tests Performed and Percent Positivity

Tests performed and percent positivity. It has taken Ohio a long time to organize all the resources for testing, including the National Guard. Now that Ohio has the resources to test all the vulnerable populations, a great deal of emphasis is being placed on pop-up locations accessible to minorities and poor people.  Tests are going up, percent positive is remaining relatively steady.

SLIDE #3  Average Age Trends by Month

Shows that as the testing has spread out beyond the vulnerable population, the average age is falling as more and more young (and presumable less sick) are detected.

  
SLIDE #4  Hamilton County (Cincinnati) R factor over time since beginning

An R factor of “1’ means each person infects one other person.  It averaged near 2 persons in the beginning back in March, plunged below “1” then averaged near “1” but has not gone up to “1.5”  So far the other areas of the State have remained at or below “1”  

Ohio strategy created a manageable plateau of cases but failed to systematically try to reduce the R factor far below 1.  Ohio has been trying to reopen the State in the hopes that when they discover places that resurge they will be able to control things.

SLIDE #5 R Values of the 14 Counties the Greater SW Ohio Region

This is a problem not just for Cincinnati but adjoining counties in Indian and Kentucky Note that like nationally this is a South and West problem.  

My explanation for that is the weather. Cincinnati gets hot and humid around this time of year. Probably a lot of indoor socialization to take advantage of air-conditioning just like earlier in March people were indoors keeping warm. Up until recent days up here in NE Ohio it has been great outdoor weather. Why go to bars, eating places, or malls?  We are now headed into the hot and humid months; I suspect our R values will climb above “1” like Cincinnati

SLIDE # 6 Number of Covid 19 patients in Region 6 (South West Ohio) hospitals

Peaked at end of April, come down during May but is sharply rising in recent days.

SLIDE #7 Number of Covid- 19 patients in Region 6 ICU units.

Peaked  in April, declined in May but is rising in recent days.

SLIDE #8 Age Distribution of Positive COVID 19 Test Results

In May it was relatively flat across the age distribution, but mid June it has shifted into a mostly younger people rather than older adults.

SLIDE #9  Percentage of Test Results Returned Positive by the Age of the Patient

 For those in their twenties, this has averaged around ten percent until early June when it first went below 10% and has now increased to above 10%.

For those in their sixties, the percentage testing positive was above 10% for April, fell below 10% for May and even further in June. 

My explanation of this slide is that people in their sixties are very concerned, are keeping social distance and are getting tested. Those in their 20s are concerned and are getting tested but are not keeping social distance.


4 comments:

  1. Jack, these are very interesting slides, and your comments and analysis seem reasonable.

    If air conditioning turns out to be a curse for the virus - that will be a big cultural change for many folks. Yet air conditioning was far from universal when I was a child; I don't think we had it until I was in high school. I used to spend a lot of summer evenings in the basement where it was cool. I watched and listened to a lot of ball games that way. That would be foreign to my children. Our home doesn't even have a basement!

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    1. My bedroom was in the basement for most of my childhood. I liked it for the most part, nice and cool in the summer. I never told my parents what a vantage point it was for listening in on conversations. It was right under the kitchen. Enquiring minds want to know.

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  2. Illinois only publishes statewide statistics, and by zip code. That means I can keep my eye on the statewide trends and the trends for my own local area, but seeing trends for the region (subset) of the state is a good deal more difficult. Illinois is grouped into regions for reopening purposes, but to the best of my knowledge, it doesn't publish these metrics by region, as Ohio did in this press conference.

    In Illinois, our infections fell through most of May and June, and then flattened, and are now starting to uptick again. I attribute most of that to the state's first phases of reopening. I suppose it's expected that the rate of infections will increase, but the hope is that it will be a containable threat.

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  3. All my kids are home for the summer, so we're riding out the virus as a family. It's a bit crowded in the home, but we're able to provide a support system for one another. We're not quarantined but for the most part we're staying in. One family member has to leave home to work, at a hospital, but does not get a lot of hours - is gone about twice a week. My wife and I both can work from home. Another of my kids is a school teacher so she's off work for the summer. The two in college had been hoping for internships this summer but most internships are canceled so they're just being summer bums around the house. I'm probably out and about the most because our food pantry and Outreach-related ministries have continued to operate.

    If you're a young single person living in an apartment by yourself or with roommates, I would guess that the wish and urge to get out of the home and go socialize would be a good deal higher than it is for us. I suspect this is why infections of young adults are increasing so rapidly in the South and West.

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