THE BENEFITS OF MODERN SUBSTITUTION THERAPY IN HEMOPHILIA
Coagulation factor preparations became available in the treatment of hemophilia about twenty years ago, followed by the introduction of prophylactic therapy and home-treatment. The purpose of our longitudinal study was to quantify the impact of these treatment modalities on the medical and social situation of hemophiliacs.We carried out three mail surveys (1972, 1978 and 1985) among Dutch hemophiliacs. In 1985 we sent questionnaires to 1162 of the estimated total of 1300 patients with a response of 81%. Eighty-six percent of the respondents had hemophilia A, 14% hemophilia B; 41% had severe hemophilia (<1%) 19% moderately-severe (1-5%) and 40% mild hemophilia (>5%). Growth of prophylactic therapy and home-treatment for severe hemophilia was The mean age increased from 21 yrs in 1972 (n=435) to 29 yrs in 1985 (n=935)(general male population: 34 yrs). The number of manifest bleedings decreased from 25 in 1972 to 15 in 1985, with a corresponding decrease in the number of transfusions for acute bleedings. Hospitalization per 100 patients with severe hemophilia decreased from more than 2100 days in 1972 to 440 days in 1985. Non-attendance at school caused by hemophilia dropped from 6 to 2 weeks per year, and sickleave from work from 35 to 15 days per year, so that it now equals sickleave among the general male population. Unemployment figures for hemophiliacs were similar to those for the general population, but disability figures are still higher. Our study shows in a quantitative way that the benefits of modern hemophilia treatment are impressive and that its costs are more than justified.