The frequency and geographical distribution of multiple sclerosis
The diagnosis of multiple sclerosis are more than 400 000 people in North America and approximately 500,000 in Europe and around the world suffer from this disease 2.5 million. Man.
The incidence of multiple sclerosis in differentregions of the world is not identical with the trend towards greater prevalence in industrialized areas. There is strong evidence pointing to a different degree of exposure to the disease, depending on geographic location.
The highest incidence of scatteredMS (ie, the number of patients with multiple sclerosis in the population) is marked in the temperate zones, and lower - for people living in countries with hot climates. In Europe, for example, the incidence increases steadily as you move from south to north.
Age when starting to develop multiple sclerosis
Typically, MS affects people inaged 20 to 40 years, although the disease can develop as in the earlier and later in life. The mean age at disease onset is 30 years. Despite the different prevalence of multiple sclerosis, disease incidence in different age groups, apparently, is the same everywhere.
Sex ratio at the incidence of multiple sclerosis
Many autoimmune diseases, includingmultiple sclerosis, evenly distributed between the sexes and women develop more frequently than men. This also applies to multiple sclerosis, and in women likely to develop multiple sclerosis two times higher than in men.
Hereditary factors in multiple sclerosis
The question of whether multiple sclerosishereditary disease, is very important, since the disease often affects young women at an age when they are planning to have children. However, in children (at the diagnosis of multiple sclerosis in one of the parents) are also risk to be ill with multiple sclerosis only slightly higher than the rest of the population. If multiple sclerosis suffers only one parent, the risk of developing multiple sclerosis in children is quite low.
Pregnancy and multiple sclerosis
It seems that the overall risk of relapseIf you are pregnant does not increase. It was noted that the frequency of exacerbations is reduced during pregnancy, but increased again in the first few months after birth. During pregnancy, you may need to stop using certain drugs for the treatment of multiple sclerosis, so even before the planned pregnancy is strongly recommended to seek professional help from a physician to discuss further therapy.