Kashin‐beck disease: A cross‐sectional study in seven villages in the people's republic of China

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Abstract
Kashin‐Beck disease (KBD) is an endemic disease that occurs in certain parts of the People's Republic of China and in Russia. The etiology of the disease is unknown. Selenium deficiency, mycotoxins, and chelating agents such as humic acid and decaying plant material from walnut tree forests have been suggested as causal agents. The primary lesion of this disease is the selective coagulative necrosis of the hypertrophie chondrocytes at the base of the articular and growth plate cartilages. A cross‐sectional study was performed in the People's Republic of China in 7 villages, to focus on information about life styles, food consumption, and environmental factors from the village population where the disease is endemic. A total of 425 children were examined, of which 71 children had KBD. Results of detailed food consumption data analyses showed that certain combinations of food substances high in protein had a protective effect. It was also found that the disease was twice as prevalent in onset in boys as in girls, in the 12‐yr‐old age group. The overall onset of illness in this group of children ranged from 4 to 13 yr. Either the joints of the fingers or one ankle was affected first Many of these children also had discolored teeth. However, this finding was unrelated to KBD.