Description Usage Format Details Source References Examples
Simulated data for birth weight and cord serum cotinine levels in 351 newborns.
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A data frame with 351 observations on the following 4 variables.
cotinine
numeric cord serum cotinine level in the mother (ng/ml).
logcotinine
logarithm of cotinine
.
weight
numeric birth weight (g).
underweight
a factor with levels no
and yes
, indicating underweight (weight
< 2500 g).
Data were simulated to emulate true data pattern observed in a real study (see ‘References’).
See ‘References’.
Pichini S et al. Cord serum cotinine as a biomarker of fetal exposure to cigarette smoke at the end of pregnancy. Environmental Health Perspectives. 2000;108(11):1079-1083.
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