Abstract

Abnormal thyroid function test (TFT) levels were reported in chronic obstructive pulmonary disease (COPD) patients. We aimed to investigate the relationship between COPD and TFT in our study. Ninety three stable COPD patients and 17 healthy adults as a control group were evaluated. Physical examination, pulmonary function tests, and arterial blood gas analysis were performed in COPD patients. To evaluate the thyroid functions, fT3, fT4, TSH levels were measured. Mean age was 65,8±9,0 for the COPD group consisting of 9 (%10) female and 84 (%90) male, and 44,6±9,2 for the control group. When COPD and control groups were compared, TSH levels were found to be lower in the COPD group (p=0.03). There is no relationship between age and TFT levels. In the COPD group, there was a negative correlation between fT4 and PEF (r=-0,21); and a positive correlation between sT4 and pH (r=0,27). In conclusion, TFT levels are considered to be affected in COPD which is a systemic disorder, thyroid hormone levels decreased in severe COPD, and TFT levels low in all COPD patients, and correlations between TFT and some PFT levels are suggested.