COVID-19 Snapshot: September 9 Update

PAR’s Analysis of Impact on Age Groups

1,522 New Cases | 15 Deaths

To access PAR’s COVID-19 Portal Visit their website: Here
On September 9, the Louisiana Department of Health reported “690 of today’s newly reported cases are attributed to a backlog with collection dates between August 6, 2020 and September 4, 2020” mostly due to delayed reporting associated with the Labor Day weekend. Despite this backlog, the state continues its decreasing trend though this might change over the next few days. The Northshore region is the only region increasing.
The graphs in this report show the number of new cases per 100,000 residents over a 14- day period, which is a method used by the state. By calculating the cases according to population in this way, the results from region to region are easier to compare to determine the severity of the outbreak. 
To view all regional trendline graphics click here: Link
14 Day Look-Back
PAR uses an average of new cases over a three-day period to smooth out irregularities that could be related to reporting inconsistencies, consistent with LDH’s method. Then, a statistically derived trendline – in the form of a straight line -– is fitted to the data to gauge whether cases are increasing, decreasing or have reached a plateau, according to the CDC definition for each.
COVID-19 Impact on Age Groups:(click to enlarge)
As students returned to school last month, PAR chose to focus today’s Snapshot on age-related COVID data. The first graph shows the percentage of cases by age. The graph compares cases as of August 12 with the new cases from August 13 to September 9. As of August 12 only 8.7% of the cases were in the under 18 age category. However 11.5% of the cases from August 13 to September 9 were in the under 18 age category. This 2.8% increase could be due to schools reopening and more testing.  LDH is working with the Louisiana Department of Education to establish a K-12 COVID data sharing and reporting system. The system has enrolled 389 schools so far with 59 reported cases comprised of 34 students and 25 faculty/staff. More information here: www.ldh.la.gov
However, deaths by age remain stable and have not seen any major increases since our last reporting on August 12. 
This graph shows the overall breakdown of cases by age. The 18 to 29 year old age group had a surge in cases in mid-June, though that has recently leveled off at around 22% of total reported cases.
However, these figures are based only on known cases. Some studies indicate that the number of people who have carried the new coronavirus is far greater than the number who have taken the test and shown a positive result. An unknown but potentially large number of people have been infected but are asymptomatic and have not been tested.

PAR Louisiana | 451 Florida Street, Ste. 1060, 
P.O. Box 14776, Baton Rouge, LA 70898-4776

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