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Table 1 The main characteristics of studies included in the meta analysis.

From: Personal experiences in ultrasonography and sonoelastography of thyroid gland

Author Year Patients Mean age Nodules Malignancies
Azizi et al. [6] 2012 706 women – 48.5, men – 47.7 912 86
Bojunga et al. [7] 2012 99 women, 39 men 52.0 158 21
Rossi et al. [8] 2012 1439 women, 417 men 52 2421 233
Trimboli et al. [9] 2012 438 women, 138 men 53.0 498 126
Bhatia et al. [10] 2011 89 patients* not given 89 19
Merino et al. [11] 2011 89 women, 14 men 58 106 10
Ünlütürk et al. [12] 2011 157 women, 37 men women - 43.7, men – 47.5 237 58
D’Souza et al. [13] 2010 151 women, 49 men not given (range 8 – 74) 200 26
Friedrich-Rust et al. [14] 2010 37 women, 13 men women – 54, men 52 53 7
Gietka – Czernel et al. [15] 2010 42 women, 10 men 45 71 22
Yunus et al. [16] 2010 58 women, 8 men not given (range 18 – 75) 78 25
Asteria et al. [17] 2008 54 women, 12 men women – 51.3, men – 60.5 86 17
Brunese et al. [18] 2008 264 women, 79 men 41.2 479 66
Rubaltelli et al. [19] 2008 25 women, 15 men 55 51 11