---
data_dictionary: whas100.dat

source:
  This data comes from Table 2.1 of 
  Hosmer DW, Lemeshow S, May S. Applied Survival
  Analysis. 2008. John Wiley and Sons, Hoboken, NJ.

download_url:
  text-format: ftp://ftp.wiley.com/public/sci_tech_med/survival/
  sas-format: https://stats.idre.ucla.edu/wp-content/uploads/2016/02/asa2_sas.zip
  spss-format: https://stats.idre.ucla.edu/wp-content/uploads/2016/02/asa2_spss.zip

description:
  The data represents survival times for a 100 patient 
  subset of data from the Worcester Heart Attack
  Study. You can find more information about this
  data set in Chapter 1 of Hosmer, Lemeshow, and
  May.
  
copyright: 
  There is no explicit license for when and how you
  can use this data, but it is presented here under
  the Fair Use provisions of U.S. Copyright law.

format:
  space-delimited 

varnames:
  first row of data
  
missing_value_code: 
  Not needed
 
size:
  rows: 100
  columns: 9

vars:
  id: 
    label: a sequential code from 1 to 100

  admitdate:
    label: Admission Date
    format: mm/dd/yyyy

  foldate: 
    label: Follow Up Date
    format: mm/dd/yyyy

  los:
    label: Length of Hospital Stay
    unit: days

  lenfol: 
    label: Follow Up Time
    unit: days

  fstat: 
    label: Vital Satus
    value:
      Alive: 0
      Dead: 1

  age:
    label: Age at Admission
    unit: years

  gender:
    value:
      Male: 0
      Female: 1

  bmi:
    label: Body Mass Index
    unit: kg/m^2
---