Whickham data
Description
Dataset used in Chapter 3 of Regression Methods in Biostatistics (2nd edition), as distributed on the UCSF companion website. Study design: Population-based prospective cohort from Whickham, England, with 20-year mortality follow-up. Primary article: Vanderpump and colleagues (1996), Thyroid.
Usage
whickham
Format
A data frame with 12 rows and 4 variables:
- vstatus
- Vital status at follow-up.
- smoker
- Indicator for current smoking.
- agegrp
- Age-group category.
- nn
- Participant sequence number in the cohort sample.