['This study investigates possible differences in the perception of quality of care at an emergency department, as related to patient background and visit characteristics.', "The study uses a prospective, descriptive survey design with data collected in May 2002 from the emergency department of a Swedish university hospital. It included 200 patients with an average age of 51 yr (range 18-91 yr). The research-based Quality from the Patient's Perspective (QPP) questionnaire, emergency department version, was used for data collection.", 'Several factors, for example, information after procedures, respect and empathy, nutrition, general atmosphere and routines, were rated significantly lower by patients with gastrointestinal symptoms, general surgery patients and patients admitted to a hospital ward, than by patients with other background or visit characteristics.'] Do different patient groups request different emergency care - a survey in a Swedish emergency department?