<unk>  has an estimated prevalence of about 1:50,000 in Caucasians. The disease seems to be less prevalent amongst Asians and African-Americans. Males and females are equally affected; however, among children, boys predominate. A recent study of people in European with primary<unk> es found that 30% had<unk> , as opposed to a different<unk> . 10–25% of people inherited the disease, typically through autosomal-dominant inheritance. Given the rarity of the disease, it is not yet possible to generalize on disease prevalence among ethnic and racial groups.<unk>  shortens the life-span; but no study currently has a median age recorded. One study suggests the median age of death for men and women is 42 and 44 years old, respectively but most patients involved in the study are still alive. Those people with accompanying disorders had the worst prognosis and those people with<unk>  only had frequent infections had the longest survival rates, with life expectancy almost equalling that of the general UK population. Additionally, people with<unk>  with one or more noninfectious complications have an 11 times higher risk of death as compared to people with only infections.
Common variable immunodeficiency
Severe combined immunodeficiency
X-linked severe combined immunodeficiency
X-linked agammaglobulinemia
Chronic granulomatous disease
Primary immunodeficiency
Wiskott–Aldrich syndrome
Combined immunodeficiencies