R: One variable from the Youth Risk Behaviors Survey, 2015.

yrbs {survey} | R Documentation

## One variable from the Youth Risk Behaviors Survey, 2015.

### 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

    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

    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")

[Package survey version 3.32-1 Index]