Hemophilia, a congenital coagulopathy characterized by a deficiency in coagulation factor VIII (hemophilia A) or factor IX (hemophilia B), results in a tendency of bleeding proportional to the lacking factor. Most bleeds in patients with hemophilia occur in their joints and muscles, and because of these bleeding episodes, patients may end up developing musculoskeletal alterations resulting from hemophilic arthropathy, even receiving hemostatic treatment. The third edition of the World Federation of Hemophilia's Guidelines for the Management of Hemophilia defines 12 principles that encompass all the different types of multidisciplinary care required by people with hemophilia, one of these being clinical and epidemiological research. The expected number of patients with hemophilia across the world has been estimated at 1125 000, most of them undiagnosed, and the total number of patients with severe hemophilia at 418 000 males. Data available from medium and high-income countries show that the prevalence at birth (incidence) and the prevalence of hemophilia differ, which means that patients with hemophilia are at a disadvantage in terms of life expectancy as compared with the general population. In medium-to-high-income countries, the life expectancy disadvantage of patients with hemophilia A and B as compared with the rest of the population is 30% and 24%, respectively. This life expectancy disadvantage is much greater in countries with more limited access to treatments for hemophilia.

Background: Hemophilia adversely affects several health domains and impairs the daily life of both patients and caregivers. Objectives: To assess the impact of hemophilia A without inhibitors on humanistic outcomes in adult and young patients and their caregivers in a real-life setting. Methods: This was a 12-month multicenter prospective observational study conducted in 18 Spanish hospitals. Patients who were diagnosed with hemophilia A (PWHs), without inhibitors, and who were 12 years of age or older, and their caregivers were included in the study. Results: A total of 85 PWHs (mean age: 33 years) and 12 caregivers participated in the study; 51 PWHs completed it, representing a 40% lost-to-follow-up rate. Twenty-five percent of PWHs showed maladjustment at study completion, with ‘leisure time’ and ‘work/studies’ being the most affected domains. Quality of life was particularly impaired in the sport, physical health and future areas. ‘Lying/sitting/kneeling/standing’ and ‘leisure activities and sports’ were the most impaired functions. Productivity was mainly affected by presenteeism in adult PWHs; 40 painful joint bleeding episodes were reported. Active strategies were mostly used for coping with chronic pain, and anxiety and/or depression were present in more than 10% of PWHs. Anxiety and depression were more frequently reported by caregivers. Conclusions: The study results suggest sustained impairments in adaptation to their disease, quality of life, and functionality in PWHs without inhibitors, especially related to leisure and sports activities, and a nontrivial proportion of them presented clinical levels of depression and anxiety. Overall impairment was more marked in adults than in children. In addition, due to the limited number of caregivers, their results must be considered exploratory.