exercise {season}

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

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

Source

From Prof Elizabeth Eakin and colleagues, The University of Queensland, Brisbane.

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

data(exercise)
boxplot(exercise$walking ~ exercise$month)