Table 4

Attrition Rates in Randomized, Controlled Trials

Attrition RateFoster et al. (11)Stern et al. (12)Brehm et al. (14)Yancy et al. (15)
Low-carbohydrate diet39% (12 months)33% (12 months)27% (6 months)24% (6 months)
Low-fat diet43% (12 months)47% (12 months)52% (6 months)43% (6 months)
  • This table summarizes the attrition rates for the low-carbohydrate and low-fat dieters in the four randomized, controlled trials investigating low-carbohydrate diets.

  • The attrition rate was significantly different between two groups (p = 0.02). Adapted from data in references 11, 12, 14, and 15.