Exercise data in longitudinal format from a physical activity intervention study in Logan, Queensland. Some subjects were lost to follow-up, so all three visits are not available for all subjects.
Format
A data frame with 1302 observations on the following 7 variables:
id: subject number
visit: visit number (1, 2 or 3)
date: date of interview (year-month-day)
year: year of interview
month: month of interview
bmi: body mass index at visit 1 (kg/m\(^2\))
walking: walking time per week (in minutes) at each visit
References
Eakin E, et al (2009) Telephone counselling for physical activity and diet in type 2 diabetes and hypertension, Am J of Prev Med, vol 36, pages 142–9
Examples
boxplot(exercise$walking ~ exercise$month)
