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Simulation settings

As part of the Simulation Flow, the COVID-19 Hospital Occupancy Simulator (CHOS) application enables hospitals to customize the models input data through personalize hospital overrides and future expert estimate overrides. Through future expert estimate overrides, hospitals can adjust a simulation-based projection to reflect a hospital's specific characteristics and to play out best and worst-case alternatives. The distinct overrides are discussed below:

Start simulation​

To start a simulation, consider the following instructions:

  1. In the CHOS navigation menu, click :material-bullseye-arrow: Simulation.
  2. In the State list, select the state in which the hospital resides.
  3. In the County list, select the county in which the hospital resides.
  4. (optional) Before starting a simulation, you can use personalize hospital or future expert estimate overrides. To learn more about available overrides and how to enable them, see Overrides: personalize hospital and Overrides: future expert estimates.
  5. If you don't want to enable any overrides, click Show forecast.

Overrides: personalize hospital​

As part of the simulation flow (step 2), a hospital can use the following personalize hospital overrides (settings):

  • Avg admissions per week over the past 4 weeks

    This override defines the admissions average value per week over the past 4-weeks that the models will use to generate the hospital-level four-week projection containing:

    • Daily expected non-ICU occupancy and admissions

    • Daily expected ICU occupancy and admissions net change

      The default value for this override is determined by the calculated average data point values from the past 4-weeks' county-level data on reported admissions due to COVID-19.

      Override Instructions
      1. On the Simulation page, slide the Avg admissions per week over the past 4 weeks slider.
      2. Click Apply & Go.

  • Avg occupancy per week over the past 4 weeks

    This override defines the average occupancy value per week over the past 4-weeks that the models will use to generate the hospital-level four-week projection containing:

    • Daily expected non-ICU occupancy and admissions

    • Daily expected ICU occupancy and admissions net change

      The default value for this setting is determined by the calculated average data point values from the past 4-weeks' county-level data on reported occupancy due to COVID-19.

      Override Instructions
      1. On the Simulation page, slide the Avg occupancy per week over the past 4 weeks slider.
      2. Click Apply & Go.

  • Avg ICU admissions per week over the past 4 weeks

    This override defines the average ICU admissions per week over the past 4-weeks that the models will use to generate the hospital-level four-week projection containing:

    • Daily expected non-ICU occupancy and admissions

    • Daily expected ICU occupancy and admissions net change

      The default value for this setting is determined by the calculated average data point values from the past 4-weeks' county-level data on reported admissions due to COVID-19.

      Override Instructions
      1. On the Simulation page, slide the Avg ICU admissions per week over the past 4 weeks slider.
      2. Click Apply & Go.

Remove personalize hospital overrides​

To remove the personalize hospital overrides and generate a simulation, consider the following instructions:

  1. On the Simulation page, click Reset Defaults & Go.

Overrides: future expert estimates​

As part of the simulation flow (step 2 and 3), a hospital can use the following future expert estimate overrides (settings):

  • Avg admissions per week

    This override defines the future expected average value for weekly admissions at the hospital level.

    Override Instructions
    1. On the Simulation page, click the following expander arrrow: Expert future estimates.
    2. Slide the following slider: Avg admissions per week.
    3. Click Apply & Go.

  • Avg net change ICU per week

    This override defines the future expected average value for weekly expected ICU net change admissions at the hospital level.

    Override Instructions
    1. On the Simulation page, click the following expander arrrow: Expert future estimates.
    2. Slide the following slider: Avg net change ICU per week.
    3. Click Apply & Go.

  • Avg COVID cases in the county per week

    This override defines the future expected average value for weekly COVID-19 cases at the hospital level.

    Override Instructions
    1. On the Simulation page, click the following expander arrrow: Expert future estimates.
    2. Slide the following slider: Avg COVID cases in the county per week.
    3. Click Apply & Go.

  • Avg LOS, non-ICU

    This override defines the future expected average value for the weekly expected length of stay (LOS) for non-ICU COVID-19 patients at the hospital level.

    Override Instructions
    1. On the Simulation page, click the following expander arrrow: Expert future estimates.
    2. Slide the following slider: Avg LOS, non-ICU.
    3. Click Apply & Go.

  • Avg LOS, ICU

    This override defines the future expected average value for the weekly expected length of stay (LOS) for ICU COVID-19 patients at the hospital level.

    Override instructions
    1. On the Simulation page, click the following expander arrrow: Expert future estimates.
    2. Slide the following slider: Avg LOS, ICU.
    3. Click Apply & Go.
Note

To learn about the implications of using the above overrides (settings), see Adjust simulation to reflect best- and worst-case alternatives.

Remove future expected estimate overrides​

To remove the future expected estimate overrides and generate a simulation, consider the following instructions:

  1. On the Simulation page, click the following expander arrow: Expected future averages.
  2. Click Reset Defaults & Go.
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Last updated on by Oshini Nugapitiya