Table 1

Average values of reminders issued to recover accelerometers
Round Number of reminders Number of returns Cumulative number of returns Cumulative proportion recovered Value of equipment recovered per reminder
0 157 157 22.0%
1 557 414 571 80.0% £148.7
2 98 73 644 90.2% £140.0
3 25 13 657 92.0% £104.0
4 12 10 667 93.4% £166.7
5 2 2 669 93.7% £200.0

Yang et al.

Yang et al. BMC Public Health 2012 12:841   doi:10.1186/1471-2458-12-841

Open Data