Applying of risk-adjusted CUSUM control chart monitoring of medical information

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Applying of risk-adjusted CUSUM control chart monitoring of medical information

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Applying of risk-adjusted CUSUM control chart monitoring of medical information

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Applying of risk-adjusted CUSUM control chart monitoring of medical information

Zi-HsuanChen

Advisor: Jing-Er Chiu, Ph.D.

ARL

- Time conditions

CUSUM

CUSUM

ARL

Logistic Model

Cox Model

Shoulder surgery

- Biswas ed.(2008)

Proposed by Page(1954)

Small process shifts

Applying Of CUSUM Control Chart In Medical

Observed outcome can have only two possible

Failure

Success

Source : Wikipedia

- Applying Of Logistic Regression In Medical

Use survival time

Proposed by Cox(1972)

Use the Logistic Model Method and Cox Model Method to compare the result ,which can quickly detect the patient has a shoulder joint shift or death situation.

- Applying Of Cox Model In Medical

- Calculate and Simulation

Collection and Simulation of patient information

- Establish
- Cox Model

Establish

Logistic Model

- CUSUM control chart

Notation and Assumptions

- Calculate ARL

- Comparative analysis

- Conclusion

- Monitoring probability of Yt

- Binary data is transformed into probability

- Establish a Logistic Regression Model
- Find the significant factor

- Calculate the weight value

- Steiner et al.(2000)

- Draw CUSUM control chart

- Monitoring probability of Yt

- Yt of time conditions convert the probability of occurrence

- Establish a Cox Regression Model
- Find the significant factor

- Calculate the weight value

- Biswas ed.(2008)

- Draw CUSUM control chart

- Simulate number of samples N

- calculation the patient t the surgery the probability of failure

- is true

- To draw CUSUM control chart ， and monitoring control chart

- In control

- Randomly generated patient after surgery results

Out –of-control

⇒ARL1

- is true

- is true

- is true

- Steiner et al.(2000)

- Calculate significant factor and Hazard ratio 。

- Simulate number of samples N , added time's condition

- is true

- To draw CUSUM control chart ， and monitoring control chart

- Randomly generated patient after surgery results

- In control

Out –of-control

⇒ARL1

- is true

- is true

- is true

- W

- Biswas ed.(2008)