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This dataset is extracted from the NHANES III (1988-1994) for the age class Newborn (under 1 year). Please note that this example dataset only contains selected variables and is for demonstration purposes only.

Usage

data(newborn)

Format

A data frame of 2107 rows and 16 variables, adapted from the NHANES III dataset. Nine variables contain missing values. Variable names and factor levels have been renamed for clarity and easier interpretation.

household_size

Household size. An integer variable ranging from 1 to 10. The original variable name in the NHANES III dataset is HSHSIZER.

age_months

Age at interview (screener), in months. An integer variable ranging from 2 to 11. The original variable name in the NHANES III dataset is HSAGEIR.

sex

Sex of the subject. A factor variable with levels Male and Female. The original variable name in the NHANES III dataset is HSSEX.

race

Race of the subject. A factor variable with levels White, Black, and Other. The original variable name in the NHANES III dataset is DMARACER.

ethnicity

Ethnicity of the subject. A factor variable with levels Mexican-American, Other Hispanic, and Not Hispanic. The original variable name in the NHANES III dataset is DMAETHNR.

race_ethinicity

Combined race–ethnicity classification. A factor variable with levels Non-Hispanic White, Non-Hispanic Black, Mexican-American, and Other. The original variable name in the NHANES III dataset is DMARETHN.

head_circumference_cm

Head circumference, in centimetres. Numeric. The original variable name in the NHANES III dataset is BMPHEAD.

recumbent_length_cm

Recumbent length, in centimetres. Numeric. The original variable name in the NHANES III dataset is BMPRECUM.

first_subscapular_skinfold_mm

First subscapular skinfold thickness, in millimetres. Numeric. The original variable name in the NHANES III dataset is BMPSB1.

second_subscapular_skinfold_mm

Second subscapular skinfold thickness, in millimetres. Numeric. The original variable name in the NHANES III dataset is BMPSB2.

first_triceps_skinfold_mm

First triceps skinfold thickness, in millimetres. Numeric. The original variable name in the NHANES III dataset is BMPTR1.

second_triceps_skinfold_mm

Second triceps skinfold thickness, in millimetres. Numeric. The original variable name in the NHANES III dataset is BMPTR2.

weight_kg

Body weight, in kilograms. Numeric. The original variable name in the NHANES III dataset is BMPWT.

poverty_income_ratio

Poverty income ratio. Numeric. The original variable name in the NHANES III dataset is DMPPIR.

smoke

Whether anyone living in the household smokes cigarettes inside the home. A factor variable with levels Yes and No. The original variable name in the NHANES III dataset is HFF1.

health

General health status of the subject. An ordered factor with levels Excellent, Very Good, Good, Fair, and Poor. The original variable name in the NHANES III dataset is HYD1.

References

U.S. Department of Health and Human Services (DHHS). National Center for Health Statistics. Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994): Multiply Imputed Data Set. CD-ROM, Series 11, No. 7A. Hyattsville, MD: Centers for Disease Control and Prevention, 2001. Includes access software: Adobe Systems, Inc. Acrobat Reader version 4.