ofc: occipitofrontal head circumference data
Description
OFC data for singleton live births with gestational age at least 38 weeks.format
A data frame with 2019 observations on 4 variables.
lll{
Year
numeric 2006 -- 2009
Sex
character 'male' or 'female'
Gestation
numeric Gestational age (in weeks).
Head
numeric head size.
}References
Wang, B and Wertelecki, W, CSDA paper.