Table 1.

Participation and Attrition Rates for Postpartum Weight Management Interventions or Interventions in WIC

	Sample	Recruited	Attendance & Attrition Rates
Havas et al. 1997 (35)	WIC, 94% black	111-C 99-IS1 27– IS2	IS1 = 25%; IS2 = 63% attended 2/3 education sessions No data Control = 55% IS1 = 37% IS2 = 11%
Leermakers et al. 1998 (7) RCT Intervention	97% white, educated, 3–12 months postpartum, at least 6.8 kg weight retained above prepregnancy weight	90	31% post treatment data; 23% drop correspondence group 40% drop control group
O’Toole et al. 2003 (35) RCT Intervention	White, Overweight, postpartum	40	42% Attrition
Nuss et al. 2006 (36) Survey	31% Non-Hispanic white, 25% Non-Hispanic Black, 44% Hispanic; WIC Survey postpartum	340	40% Attrition
Ostbye et al. 2009 (28) RCT Intervention	52% white, 45% black; educated; 42% with incomes greater than $60,000/year Postpartum	450	30% Attrition; 43% attended no classes; 30% attended 1–5; 27% attended 6 or more

IS1 = Intervention site 1; IS2 = Intervention site 2