久居高原者重返平原后脱适应问题调查

目的；为探讨脱适应过程对机体的影响问题；方法；调查了增长期移居青海高原（２２６０－４２００ｍ）后返回平原及仍留居高原的９５４２名离休干部的生存情况，并对此资料进行生存率和Ｒｉｄｉｔ分析；结果：总的趋势是返回平原组的平均Ｒｉｄｉｔ值比留居高原的平均Ｒｉｄｉｔ佳要大。分组比较中度高原、高度高原５０岁组，差异均有性意义。生存率分析有退离休后两年内高原组生存率大于平原组，两年后各年平原组和存率高于高原组的

A SURVEY OF DESACCLIMATIZATION IN RETIRED POPULATION MIGRATED TO SEA LEVEL FROM HIGH ALTITUDE

To observe the effects of desacclimatization on healthy retired population when they exposed to sea level from high altitude. Methods: The survival condition was analysed and statisted in 9 542 retired subjects. Results:Ridit value of sea level group was higher than that of high altitude group(P<0. 01 ). Survival rate greatly highten in high altitude group in two years compared with plain group, contrary after two years (P>0. 05 ). Conclusions: The life of retired population who had adapted to the high altitude condition would be not affected when they returned from high altitude to plain after retire.