소개글
생존분석 레포트에 대한 자료입니다.
목차
Ⅰ. Basic Concepts in Survival Analysis
1.1 Study Designs
1.2 Survival Time
Chapter.2 Estimation of Functions and Parameters
2.1 Estimation of the Survival Function
2. 2 Some Survival Models
2.4 Estimating of the cumulative hazard
Ⅲ.Comparison of Survival Distributions
3.1 Non-parametric Method
3.2 Comparison of two exponential distribution.
Ⅳ. Correlation and Regression Analysis
4.1 Simple Regression and Correlation
4.2 Multiple Regression
본문내용
1.1 Study Designs
․Retrospective Studies
․Prospective Studies
※ Survival Analysis
; Deals with analysis of data that have "time to an event".
※ Survival time
; Time until an event occurs.
※ Event
; a. relapse of a disease
b. death
c. response to a treatment
; Economical,
To obtain answers quickly because the cases are already available.
※Disadvantages of retrospective design
; Limitation in the accuracy of exposure history and uncertainly about the
appropriateness of the control sample.
2. Prospective Study
․Cohort Study
; One enrolls a group of persons and follows them over a certain period to observe the time at which a disease or another end point develops.
․Clinical trial
; A prospective study comparing the effect and value of intervention(s) against control in human subjects.
- prospective not retrospective
- intervention / equipment
therapeutic
drug
device
procedure
- control group
no intervention
placebo
current standard therapy
previous standard