Monday, September 18, 2006

Tasks after the meeting

There are several tasks after the meeting with Roger and David:

1. Building different matrix for each individual trajectory and average trajectory (individual - average) 

2. Alyways use “distance” between individual and average to define “parallel, crossing”

3. Calculate the “standard deviation” for each part (left part of crossing and right part)

4. Try to define “crossing” –> distance=0 and STD is a large number

“parallel” –> distance=fixed number and STD is 0 

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Friday, September 8, 2006

Preterm Birth Risk Factors

(1). Reading webpages from: http://en.wikipedia.org/wiki/Premature_birth

shows some risk factors for PTB:

1. Previous history of preterm birth

2. Multiple pregnancies

3. Certain chronic disease such as high blood pressure, kidney disease and diabetes.

4. Substance abuse of tobacco, alcohol and other drugs

5. Women under 18 or over 35 are at a higher risk for premature birth

We should make full use of our data to validate to see whether we can find some useful patterns from these risk factors.

(2). Reading webpages from: http://en.wikipedia.org/wiki/Birth_weight

Categories of growth retardation: Symmetrical growth retardation and Asymmetrical growth retardation

We should also try to see whether our data has these patterns or not. “BPD” is the parameter, we should focus on.

Posted by at 03:00:28 | Permalink | No Comments »