In a study carried out in patients with congestive heart failure, Spitzer's questionnaire was found to be effective in differentiating between a study group and a control group when compared with the Sickness Impact Profile SIP and the Quality of Well-Being QWB.
En estudio realizado junto a los pacientes con insuficiencia cardiaca, el cuestionario de Spitzer mostró ser efectivo en discriminar entre el grupo experimental y el de control, cuando son comparado con los instrumentos Sicknes Impact Profile SIP y Quality of Well-Being QWB.
Em estudo realizado junto à pacientes com insuficiência cardíaca, o questionário de Spitzer mostrou ser efetivo em discriminar entre grupo experimental e controle quando comparado com os instrumentos Sickness Impact Profile SIP e Quality of Well-Being QWB.