One variable from the Youth Risk Behaviors Survey, 2015.

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Description

Design information from the Youth Risk Behaviors Survey (YRBS), together with the single variable ‘Never/Rarely wore bike helmet’. Used as an analysis example by CDC.

Usage

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data("yrbs")

Format

A data frame with 15624 observations on the following 4 variables.

weight

sampling weights

stratum

sampling strata

psu

primary sampling units

qn8

1=Yes, 2=No

Source

ftp://ftp.cdc.gov/pub/data/yrbs/2015smy/ for files

References

Centers for Disease Control and Prevention (2016) Software for Analysis of YRBS Data.https://www.cdc.gov/healthyyouth/data/yrbs/pdf/2015/2015_yrbs_analysis_software.pdf

Examples

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data(yrbs)

yrbs_design <- svydesign(id=~psu, weight=~weight, strata=~stratum,
data=yrbs)
yrbs_design <- update(yrbs_design, qn8yes=2-qn8)

ci <- svyciprop(~qn8yes, yrbs_design, na.rm=TRUE, method="xlogit")
ci

## to print more digits: matches SUDAAN and SPSS exactly, per table 3 of reference
coef(ci)
SE(ci)
attr(ci,"ci")

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