nlsy97: NLSY97 Substance Use Data

In slca: Structural Modeling for Multiple Latent Class Variables

NLSY97 Substance Use Data

Description

This dataset contains substance use behavior data from the National Longitudinal Survey of Youth 1997 (NLSY97) for three years: 1998, 2003, and 2008. The dataset focuses on youth born in 1984 and tracks three types of substance use behaviors: tobacco/cigarette smoking, alcohol drinking, and marijuana use.

Usage

nlsy97

Format

A data frame with 1004 rows and 38 columns:

SEX

Respondent's sex

RACE

Respondent's race

ESMK_98, ESMK_03, ESMK_08

(Ever smoked) Ever smoked in 1998, 2003, and 2008 (0: No, 1: Yes)

FSMK_98, FSMK_03, FSMK_08

(Frequent smoke) Monthly smoking in 1998, 2003, and 2008 (0: No, 1: Yes)

DSMK_98, DSMK_03, DSMK_08

(Daily smoke) Daily smoking in 1998, 2003, and 2008 (0: No, 1: Yes)

HSMK_98, HSMK_03, HSMK_08

(Heavy smoke) 10+ cigarettes per day in 1998, 2003, and 2008 (0: No, 1: Yes)

EDRK_98, EDRK_03, EDRK_08

(Ever drunk) Ever drunk in 1998, 2003, and 2008? (0: No, 1: Yes)

CDRK_98, CDRK_03, CDRK_08

(Current drinker) Monthly drinking in 1998, 2003, and 2008 (0: No, 1: Yes)

WDRK_98, WDRK_03, WDRK_08

(Weakly drinker) 5+ days drinking in a month in 1998, 2003, and 2008 (0: No, 1: Yes)

BDRK_98, BDRK_03, BDRK_08

(Binge drinker) 5+ drinks on the same day at least one time in the last 30 day (0: No, 1: Yes)

EMRJ_98, EMRJ_03, EMRJ_08

(Ever marijuana used) Have you ever used marijuana in 1998, 2003, and 2008? (0: No, 1: Yes)

CMRJ_98, CMRJ_03, CMRJ_08

(Current marijuana user) Monthly marijuana use in 1998, 2003, and 2008 (0: No, 1: Yes)

OMRJ_98, OMRJ_03, OMRJ_08

(Occasional marijuana user) 10+ days marijuana use in a month in 1998, 2003, and 2008 (0: No, 1: Yes)

SMRJ_98, SMRJ_03, SMRJ_08

(School/work marijuana user) Marijuana use before/during school or work in 1998, 2003, and 2008 (0: No, 1: Yes)

Source

National Longitudinal Survey of Youth 1997 (NLSY97)

References

Bureau of Labor Statistics, U.S. Department of Labor. National Longitudinal Survey of Youth 1997 cohort, 1997-2017 (rounds 1-18). Produced and distributed by the Center for Human Resource Research (CHRR), The Ohio State University. Columbus, OH: 2019.

Examples

library(magrittr)
nlsy_smoke <- slca(SMK_98(3) ~ ESMK_98 + FSMK_98 + DSMK_98 + HSMK_98) %>%
   estimate(data = nlsy97, control = list(verbose = FALSE))
summary(nlsy_smoke)


# JLCA
model_jlca <- slca(
   SMK_98(3) ~ ESMK_98 + FSMK_98 + DSMK_98 + HSMK_98,
   DRK_98(3) ~ EDRK_98 + CDRK_98 + WDRK_98 + BDRK_98,
   MRJ_98(3) ~ EMRJ_98 + CMRJ_98 + OMRJ_98 + SMRJ_98,
   SUB_98(4) ~ SMK_98 + DRK_98 + MRJ_98
) %>% estimate(data = nlsy97, control = list(verbose = FALSE))
summary(model_jlca)
param(model_jlca)

# JLCPA
nlsy_jlcpa <- slca(
   SMK_98(3) ~ ESMK_98 + FSMK_98 + DSMK_98 + HSMK_98,
   DRK_98(3) ~ EDRK_98 + CDRK_98 + WDRK_98 + BDRK_98,
   MRJ_98(3) ~ EMRJ_98 + CMRJ_98 + OMRJ_98 + SMRJ_98,
   SUB_98(5) ~ SMK_98 + DRK_98 + MRJ_98,
   SMK_03(3) ~ ESMK_03 + FSMK_03 + DSMK_03 + HSMK_03,
   DRK_03(3) ~ EDRK_03 + CDRK_03 + WDRK_03 + BDRK_03,
   MRJ_03(3) ~ EMRJ_03 + CMRJ_03 + OMRJ_03 + SMRJ_03,
   SUB_03(5) ~ SMK_03 + DRK_03 + MRJ_03,
   SMK_08(3) ~ ESMK_08 + FSMK_08 + DSMK_08 + HSMK_08,
   DRK_08(3) ~ EDRK_08 + CDRK_08 + WDRK_08 + BDRK_08,
   MRJ_08(3) ~ EMRJ_08 + CMRJ_08 + OMRJ_08 + SMRJ_08,
   SUB_08(5) ~ SMK_08 + DRK_08 + MRJ_08,
   PROF(4) ~ SUB_98 + SUB_03 + SUB_08,
   constraints = list(
      c("SMK_98", "SMK_03", "SMK_08"),
      c("DRK_98", "DRK_03", "DRK_08"),
      c("MRJ_98", "MRJ_03", "MRJ_08"),
      c("SUB_98 ~ SMK_98", "SUB_03 ~ SMK_03", "SUB_08 ~ SMK_08"),
      c("SUB_98 ~ DRK_98", "SUB_03 ~ DRK_03", "SUB_08 ~ DRK_08"),
      c("SUB_98 ~ MRJ_98", "SUB_03 ~ MRJ_03", "SUB_08 ~ MRJ_08")
   )
) %>% estimate(nlsy97, control = list(verbose = FALSE))

slca documentation built on Sept. 9, 2025, 5:51 p.m.