Birth weights and maternal data

Source: R/Birth_weight.R

Birth weight, date, and gestational period collected as part of the Child Health and Development Studies in 1961 and 1962. Information about the baby's parents --- age, education, height, weight, and whether the mother smoked is also recorded. The data were present by Nolan and Speed to address the question of whether there is a link between maternal smoking and the baby's health.

data(Birth_weight)

Format

A data frame with 886 observations on the following variables.

  • baby_wt Birth weight of baby, in ounces.

  • mother_wt in pounds

  • gestation Length of the pregnancy, in days.

  • smoker Whether the mother smoked during the pregnancy.

  • incomeFamily yearly income in 2500USD increments 0 = under 2500, 1=2500-4999, ..., 8= 12,500-14,999, 9=15000+

Source

D. Nolan and T.P. Speed (2009) "Stat Labs: Mathematical Statistics Through Applications"

Examples

mod_1 <- lm(baby_wt ~ gestation + mother_wt, data = Birth_weight)
mod_effect(mod_1, ~ gestation)
#>      slope gestation to_gestation mother_wt
#> 1 0.441264       280          290       120