A simple generic rich picture view of interactions among concerned people with needs services and resources and abilities (including learning), which can be used as a pattern for many individual health care insights.

DIabetes incidence inflow, Prevalence stock and deaths outflow

See reference in diagram notes. WIP for Environment part of primary care regional model. GP centric calibration by JPS at IM-14117 See also IM-3126 for Regional Health Service Use Context

Improvement Science as one of the clusters of interacting methods for improving health services network design and delivery using complex decision technologies IM-17952

Linked concept version of Tanner's Clinical Judgment Model used as a scaffolding to start modeling managing the deteriorating patient.

Hypertension Generic Patient Flow Causal Loop Diagram version of Insight 305

Upgrade of Kermack–McKendrick Epidemic SIR Infectious Disease Model (circa 2015) - Metrics by Guy Lakeman

This is a simple SIR infectious diseases 3 stock model with Susceptibles, Infectives and Recovereds stocks. In the initial description the R signified Removed and could include Deaths, Recovered with immunity to infection (Resistant) or those who had fled the epidemic. Note the need to initiate the epidemic by adding a pulse of a single infected person at time 0.

Addition of a slider for susceptibles is equivalent to accumulated total cases

SARS, MERS AND COVID are similar virus types only differing in their sub genus

The COVID outbreak has reached 150,000 infected people

This simulation allows an attempt at predicting how long the virus will persist and its longevity dependence on its high speed massive infection numbers that have reached pandemic proportions

SARS reached 8,000 infected total and ran for 9 months before stopping

MERS 2012 is still killing 8 years later with patients dying even after using interferon to try and cure them

updated 16/3/2020 from 5 years ago

From Nancy Leveson Vioxx Recall Study in CH8 Engineering a Safer World and Couturier's MIT ESD Thesis

Click +View Story on Bottom Left to unfold his wide view of Emergency care patient flows IM-6072 used as context to add confounders and potential indirect effects. See also IM-1010 for hospital fixes that fail, wiki for general Systems Archetypes and wiki for Leverage Points (There is also a health leverage points WIP wiki page)

FBE WIP

Forcings and feedbacks based on Tom Fiddaman, James Hansen and other feedback and cycle diagrams

Adapted from Richard Normann (1991) Service Management Book Wiley Fig 14.6 p163

Addition of glucagon hormone action to control glucose homeostasis extended from IM-586

Emergency care patient flows IM-6072 used as context to add confounders and potential unintended effects.

The current Causal loop diagram

A stock flow structure used to show the unit of analysis, scope of study and context of the ED Four hour rule project, cloned from im-399 monthly flows

Adding change over time to relative risk, odds ratio and population attributable fraction epidemiology concepts see wikipedia and examples .

A simple glucose regulation causal loop diagram taken from Richard O. Foster, 1970: The Dynamics of blood sugar regulation, MSc thesis, MIT Dept of Electrical Engineering, available on the MIT System Dynamics Group Literature Collection and in the MIT Electronic Libraries. See IM-587 for Addition of Glucagon

A simple generic rich picture view of interactions among concerned people with needs services and resources and abilities (including learning), which can be used as a pattern for many individual health care insights.

The transitions from home to supported accommodation for people with Intellectual Disability (ID) from birth to death in order to plan future services as they survive longer.

Kidney replacement therapy dynamics simple model

Mindmap (tree) version of thermostat concept map

Model of Factors Affecting Ebola