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本文报告老年非甲状腺疾病重危患者的甲状腺激素水平改变。老年患者组１１８例，其中重危患者５４例。结果：老年正常对照组Ｔ＿３较成年正常对照组明显降低（Ｐ＜０．０５）：老年患者组血清Ｔ＿２较老年正常对照组明显降低（Ｐ＜０．０５）．ＦＴ＿３显著降低（Ｐ＜０．０１）；ｒＴ＿３显著增高（Ｐ＜０．０１）；恶性肿瘤有广泛转移者与未发现较移者、有重度心衰与心功能代偿者，有呼吸衰竭与无呼吸衰竭者，前者较后者血清Ｔ＿３、ＦＴ＿３均明显降低（Ｐ＜０．０５或Ｐ＜０．０１）、ｒＴ＿３明显增高（Ｐ＜０．０５或Ｐ＜０．０１）。这种变化可以作为估计老年患者病情严重程度及预后的一项重要指标。
This article reports the changes in thyroid hormone levels in elderly patients with non-thyroid disease. 118 cases of elderly patients, of which 54 cases of critically ill patients. Results: Compared with the normal control group, T_3 in the elderly normal control group was significantly lower than that in the control group (P <0.05). The serum T_2 in elderly patients was significantly lower than that in the elderly controls (P <0.05). FT_3 significantly decreased (P <0.01); rT_3 was significantly higher (P <0.01); malignant tumor with extensive metastasis and not found in those with shift, who have severe heart failure and cardiac function compensatory, with respiratory failure and No respiratory failure, the former than the latter serum T_3, FT_3 were significantly lower (P <0.05 or P <0.01), rT_3 was significantly higher (P <0.05 or P <0.01). This change can be used as an important indicator to estimate the severity and prognosis of elderly patients.