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. 2017 Oct 20;8:277. doi: 10.3389/fendo.2017.00277

Table 2.

Comparison between long-term anaplastic thyroid cancer (ATC) survivors and other ATC patients in Sicily.

	Long-term ATC survivors^a (n = 14)	Other ATC patients (n = 29)	p
Mean age (years)	67.0 (±7.0)	73.8 (±10.0)	0.03
Age >70 years	4 (28.6%)	21 (72.4%)	0.006
F/M ratio	0.75/1	1.9/1	0.16
Coexistence with DTC	8/14 (61.5%)	12/29 (42.9%)	0.27
Tumor size (cm, M ± SD)	4.9 (±1.6)	6.0 (±2.5)	0.23
Extrathyroid invasion^b	5/10 (50%)	22/27 (81.5%)	0.06
Stage
IV A (n = 16)	8/14 (57.1%)	8/29 (27.6%)	0.06
IV B + IV C (n = 27)	6/14 (42.9%)	21/29 (72.4%)

^aSurviving beyond 2 years.

^bAvailable only in the 37/43 patients.