Kojeni {mffSM} | R Documentation |
Data on 99 children born in two hospitals (in Prague and a certain province city in the Czech Republic) in the 90's of the 20th century.
Data are used for several illustrations in the book Regrese by Karel Zvára (Zvára, 2008). Originally, data were obtained by P. Hajná during preparation of her Master thesis with the breast feeding (“kojení” in Czech) habits of Czech mothers as the primary research goal (Hajná, 1995).
data(Kojeni)
A data.frame
with 99 rows and the following variables.
birth place of a child, 1 = Prague, 2 = province city
number of children of parents
education of a mother, 1 = primary, 2 = secondary, 3 = tertiary
breast feeding duration [weeks]. This variable is
censored at 24 weeks, i.e., bfeed.dur
=
24
means that mother was still giving a breast feeding at 24 weeks
after birth of a child
was mother still giving a breast feeding at 24 weeks after birth? 1 = yes, 0 = no
gender of a child, 1 = boy, 0 = girl
birth weight [g] of a child
birth length [cm] of a child
weight [g] of a child at the age of 24 weeks
length [cm] of a child at the age of 4 weeks
was a child offered a breast soon after the birth? 1 = yes, 0 = no
was a father present at the delivery? 1 = yes, 0 = no
was a child given a teat for most of the 24 weeks time? 1 = yes, 0 = no
was a child planned? 1 = yes, 0 = no
mother's height [cm]
father's height [cm]
mother's age
father's age
factor
with levels
Prague/Province corresponding to the variable bplace
factor
with levels
Primary/Secondary/Tertiary corresponding to the variable educ
factor
with levels No/Yes corresponding to the variable bfeed24
factor
with levels Girl/Boy corresponding to the variable gender
factor
with levels No/Yes corresponding to the variable breast
factor
with levels No/Yes corresponding to the variable father
factor
with levels No/Yes corresponding to the variable teat
factor
with levels No/Yes corresponding to the variable plan
http://msekce.karlin.mff.cuni.cz/~zvara/regrese/kniha/R.ZIP
Hajná, P. (1995). Vliv biosociálních faktorů na délku kojení a závislost vybraných antropometrických charakteristik na způsob výživy dítěte v prvních šesti měsících života. Diplomová práce, Přírodovědecká fakulta Univerzity Karlovy v Praze.
Zvára, K. (2008). Regrese. Praha: Matfyzpress. ISBN 978-80-7378-041-8.
data(Kojeni) summary(Kojeni)