stu1: Data example stu1

In nonrandom: Stratification and matching by the propensity score

Description

Data on quality of life in n=646 breast cancer patients in an observational treatment study of the German Breast Cancer Study Group (GBSG)

Usage

data(stu1)

Format

A data frame with 648 observations on the following 9 variables.

klinik

clinic center

idnr

patient id

tmass

tumor size in mm

alter

age

therapie

therapy:

1:

mastectomy

2:

breast conservation

tgr

tumor size:

1:

<= 10 mm

2:

> 10 mm

age

age:

1:

<= 55 yrs

2:

> 55 yrs

ewb

emotional status

pst

physical status

Examples

data(stu1)

nonrandom documentation built on May 29, 2017, 11:41 p.m.