“…In our study, the attrition rates were 27.3% by T2 and 40.9% by T3. Previous studies, which ranged from 6 weeks to 18 months of self-monitoring, reported attrition rates of 22% to 72% (Burke et al, 2012;Conroy et al, 2011;Donaldson et al, 2013;Hood et al, 2013;Kong et al, 2012;Steinberg et al, 2013;Wing et al, 2006). The longer a study, the higher the attrition rate was.…”