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【答】风湿热主要是儿童和青年的疾病,初次发病约60%在5～15岁,85%在30岁以前,30岁以后少见。儿童和青年患者的心脏炎发生率为60～70%,关节炎的发生率为50～70%,成人患者两者的发生率分别为20%左右和90%以上。儿童和青年患者与成年患者相比,不仅心脏炎的发生率很高,程度也较重,尤其是儿童患者,发生心衰的机会多,复发率也高。在关节炎方面,成人患者的发生率很高,且成人和青年患者关节炎的病情多很严重,而
[A] Rheumatic fever is mainly a disease of children and young people, about 60% of the initial onset of 5 to 15 years old, 85% before the age of 30, rare after 30 years of age. Cardiac inflammation occurs in 60- 70% of children and young adults, with an incidence of arthritis of 50-70%. The incidence of both adult and adult patients is about 20% and 90%, respectively. Children and young patients, compared with adult patients, not only have a high incidence and severity of cardiitis, but especially in children, they have more chances of developing heart failure and higher recurrence rates. In the case of arthritis, the incidence of adult patients is high, and the condition of arthritis in adult and young patients is very serious, and