- Whether the participant has a body mass index of twenty-nine or more.
- Galanos, A.N., C.F. Pieper, and J.C. Cornoni-Huntley (1994), "Nutrition and function: Is there a relationship between body mass index and the functional capabilities of community-dwelling elderly?", Journal of the American Geriatrics Society, 42, 368-373. [Endnote]