Needle sharing data
Description
Dataset used in Chapter 8 of Regression Methods in Biostatistics (2nd edition), as distributed on the UCSF companion website. Study design: Longitudinal panel study of injection drug users measuring repeated needle-sharing behavior. Primary article: RMB2e risky-drug-use example dataset.
Usage
needle_sharing
Format
A data frame with 128 rows and 17 variables:
- id
- Participant identifier.
- sex
- Biological sex indicator.
- ethn
- Self-reported ethnicity category.
- age
- Age at 1st interview
- dprsn_dx
- Indicator for depression diagnosis.
- sexabuse
- Sexually abused?
- shared_syr
- Shared syringe
- hivstat
- HIV serostatus indicator.
- hplsns
- Hopelessness score/indicator as coded in source data.
- nivdu
- No of injections (in 30 days)
- shsyryn
- Indicator for whether the participant shared syringes.
- sqrtnivd
- sqrt(No ivdu 30 days)
- logshsyr
- Log-transformed shared-syringe count/frequency.
- polydrug
- Indicator for use of multiple non-injection drugs.
- sqrtninj
- Square-root transformed injection count.
- homeless
- Indicator for homelessness.
- shsyr
- No. of shared needles