In almost every second case, a medical decision to withhold or withdraw treatment is taken with the explicit intention of hastening the end of the patient's life. No clear association can be found between the intent to hasten the end of life and features of the treatment forgone that can be determined objectively, such as the likelihood and extent of a life-shortening effect, the immediacy of death, or the expected burden of any potential life-sustaining measure. The findings of the study challenge the usefulness of doctors' intentions with regard to hastening the end of life as criteria for moral judgements on decisions to withhold or withdraw medical treatment.