bfeed data frame has 927 rows and 10 columns.
This data frame contains the following columns:
Duration of breast feeding, weeks
Indicator of completed breast feeding (1=yes, 0=no)
Race of mother (1=white, 2=black, 3=other)
Mother in poverty (1=yes, 0=no)
Mother smoked at birth of child (1=yes, 0=no)
Mother used alcohol at birth of child (1=yes, 0=no)
Age of mother at birth of child
Year of birth
Education level of mother (years of school)
Prenatal care after 3rd month (1=yes, 0=no)
Klein and Moeschberger (1997) Survival Analysis Techniques for Censored and truncated data, Springer. National Longitudinal Survey of Youth Handbook The Ohio State University, 1995.