Table 4: thyroid hormone dysfunction prevalence in the studied population
Group / Thyroid disorder	CKD patients (N = 49)	Non-CKD Control (N = 65)
Sub-clinical hypothyroidism n(%)	2(3.3 )	3 (4.6)
Primary hypothyroidism   n(%)	0(0.0)	0(0.0)
Sub-clinical hyperthyroidism n(%)	2(3.3)	0(0.0)
Primary hyperthyroidism n(%)	0(0.0)	0(0.0)
TSH normal range: 0.4 - 5.5 mIU/ml, FT3 normal range: 2.8 - 7.3pmol/L, FT4 normal range: 8.5 - 22.5 pmol/L. Subclinical Hypothyroidism: when TSH is higher than 5.5 mIU/ml, FT3 and FT4 within normal range. Primary Hypothyroidism: when TSH is greater than 5.5mIU/ml, FT3 and FT4 less than normal. Subclinical Hyperthyroidism: when TSH is less than 0.3 mIU/ml, FT3 and FT4 within normal range. Primary Hyperthyroidism: when TSH is less than 0.3mIU/ml, FT3 and FT4 higher than normal