season (version 0.3.12)

exercise: Exercise Data from Queensland, 2005--2007

Description

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.

Usage

data(exercise)

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

# NOT RUN {
data(exercise)
boxplot(exercise$walking ~ exercise$month)
# }