[A retrospective clinical study of XXXX complicated by acute exacerbation in high altitude environment].

@entity1 @entity697 @entity2657 @entity101 @entity3126 @entity102 @entity195 @entity299
OBJECTIVE: To study @entity102 ( @entity102 ) with concurrent @entity697 ( @entity697 ) in regions of high altitude. METHODS: 18,090 inpatients from Feb. 1956 to Dec. 1995 conforming to a screening standard were observed in a hospital located at altitude 3658 m. 1,028 inpatients suffering from @entity102 when hospitalized were collected as a study group. 17,020 inpatients suffering from non-HAD when first hospitalized served as a control group. The morbidity rate of @entity697 in these two groups in a follow-up period of 1 - 20 years was analyzed. RESULTS: (1) @entity697 morbidity rate was increasing with prolongation of observation time in the control group, but it was not so in the study group. Annual and accumulative morbidity of @entity697 in the study group was obviously higher than that in the control group (P < 0.005, OR = 5.03, RR = 4.33). (2) The morbidity rates of three types of @entity697 aside from @entity3126 ( @entity3126 ) of @entity101 ( @entity101 ) group and @entity2657 ( @entity2657 ) of @entity299 ( @entity299 ) group was obviously higher in the study group than in the control (P < 0.05 - 0.005). @entity697 morbidity rate in @entity299 group and @entity195 was 23.5% and 22.0% (OR = 7.33 - 6.71, RR = 5.86 - 5.47). (3) @entity697 morbidity rate in @entity299 group and @entity195 group was obviously higher than that in the control, constituting mainly a high morbidity of mild @entity697 . CONCLUSION: The risk of @entity697 increases about 5-fold in @entity102 @entity1 than in the multitude of high altitude acclimatization, being most evident in @entity299 and @entity195 .
