Malformation: Infant Malformation and Mother's Alcohol Consumption Data.

In R4HCR: R for Health Care Research

Infant Malformation and Mother's Alcohol Consumption Data.

Description

Data from a prospective study of maternal drinking and congenital malformation. Alcohol consumption was measured using a questionnaire (3 months after pregnancy). The presence or absence of congenital sex organ malformation was recorded following childbirth.

Usage

Malformation

Format

A data frame with 5 observations on the following four variables.

Alcohol_consumption

Alcohol consumption measured as average numebr of drinks per day.

Absent

Absence of any congential malformation

Present

Congenital malformation present

Midpoints

Midpoints of the alcohol consumption categories

Details

This data set appears in An Introduction to Categorical Data Analysis by Agresti (section 2.5.2, page 35). The original source is cited as B.I.Graubard and E.L.Korn, Biometrics 43: 471-476 (1987).

Source

Agresti, A., 2012. Categorical data analysis (Vol. 792). John Wiley & Sons.

Examples

data(Malformation, package = "R4HCR")

# Chi-square test.
with(Malformation,
     chisq.test(cbind(Absent,Present),
                simulate.p.value = TRUE))

R4HCR documentation built on Sept. 30, 2024, 9:46 a.m.