Background:Because tube-feeding decisions are sometimes difficult, we examined physician, institutional, and patient factors associated with these decisions.Methods: Primary care physicians (n ؍ 388) likely to manage nursing home patients in Hawaii were surveyed. Respondents indicated the factors of great importance in tube feeding decisions based on a vignette of a poststroke patient failing to thrive and family disagreement with advance directives. 2 and multiple logistic regression analyses were used to examine associations between physician demographics and factors of importance to physicians and their decisions based on the vignette. Conclusions: The decision to start or withhold tube feeding is associated with the individual physician's perception of the importance of patient wishes versus family wishes and liability concerns. Physician awareness of the influence of these factors on medical decisions may improve the decision-making process.