S. Ertek, R.Ü. Ersoy, C. AnIl, Ö. Demir, M.F. Erdog˘an, S. Güllü, D. Berker, K. Gül, U. Ünlütürk, G. Erdog˘an; Ankara Thyroid Study Group Table II. Comparison of thyroid tests and ultrasonographic findings in HT and non-HT patients for two successive visits Parameter Hashimoto (+) Hashimoto (–) 1st visit 2nd visit Value of p 1st visit 2nd visit Value of p* TSH [mIU/ml] 5.93 ±5.81 8.58 ±7.57 0.835 1.72 ±1.07 2.00 ±1.47 0.042* sT4 [pmol/l] 15.66 ±4.01 14.73 ±5.34 0.122 16.38 ±3.72 14.65 ±3.61 0.001* sT3 [pmol/l] 3.85 ±1.22 3.94 ±2.11 0.641 3.78 ±1.10 3.62 ±0.93 0.394 Anti-TG 159.53 ±151.17 214.95 ±207.29 0.491 13.67 ±6.61 15.7 ±7.97 0.412 Anti-TPO 125.14 ±112.17 174.53 ±157.54 0.761 12.26 ±7.52 13.62 ±11.07 0.736 Remaining lobe volume** 9.15 ±7.94 8.78 ±7.94 0.554 10.69 ±8.62 10.17 ±7.71 0.811 Number of nodules 0.65 ±0.83 0.65 ±0.92 0.776 1.02 ±1.01 1.3 ±1.27 0.005* Nodule 1 volume 9.8 ±2.7 10.5 ±2.6 0.494 9.0 ±3.7 9.6 ±3.8 0.135 Nodule 2 volume 3.7 ±2.2 4.2 ±2.8 0.515 2.0 ±1.5 2.2 ±1.8 0.209 Nodule 3 volume 2.9 ±1.2 2.8 ±2.0 0.109 3.7 ±1.7 3.9 ±1.4 0.136 Nodule 4 volume** 2.1 ±1.0 2.0 ±1.0 0.981 2.03 ±2.0 2.52 ±1.9 0.043* *p < 0.05, **Nodule volumes are calculated in millilitres (ml) p = 0.835 p = 0.251 p = 0.042 p = 0.05 p = 0.776 HT(–) HT(+) 12 10 l] 8 m / IU 6 m [ TSH 4 2 0 1.6 s 1.4 e l u od 1.2 n f o reb 1.0 m u N0.8 0.6 p = 0.109 p = 0.055 LT4(–) 20 15 ] l m / IU 10 m [ H S T 5 0 1.50 s1.25 e l u od1.00 n f o re0.75 b m uN0.50 0.25 p = 0.134 LT4(+) HT(–) HT(+) LT4(–) LT4(+) TSH in the first visit TSH in the second visit Figure 1. Comparison between two visits regarding TSH levels, in HT vs. non-HT, on LT4 vs. not on LT4 groups Number of nodules in the first visit Number of nodules in the second visit Figure 2. Comparison between two visits regarding number of nodules, in HT vs. non-HT, on LT4 vs. not on LT4 groups 266 Arch Med Sci 2, April / 2012