Table 4.

Allele frequency to the polymorphism in the length of the polyA tract of FOXE1 gene in the present study and literature.

Alleles	Present study		Macchia et al. 1999	Hishinuma et al. (2001)		Polak et al. (2004)		Tonacchera et al. (2004)		Watkins et al. 2006		Santarpia et al. (2007)
	Brazil		Italy†	Japan		France		Italy		New Zealand†	Slovenia†	Italy
	TD	C†		TD†	C	TD†	C†	TD†	C†			TD†	C
11	1.1	0	0	0.4	0	0	0	0.9	0	0	0	0	0
12	1.1	1.5	2	1.3	0	1	0	0.9	0	0.4	0.6	1.1	0
14	96.7	60.7	54	78.3	97	85.3	65.1	81.6	88.7	67.5	67.2	82.2	94.7
16	1.1	36.6	40	17.4	3	13.7	33.7	16.6	11.3	30	28.4	16.1	5.3
17	0	0.8	4	1.7	0	0	1.2	0	0	0	0	0.6	0
19	0	0.4	0	0.9	0	0	0	0	0	2.1	3.8	0	0

^†Statistically significant difference in relation to the TD group of the present study [Control (present study)—p < 0.0001; Macchia et al.—p < 0.0001; TD (Hishinuma et al.)—p = 0.0003; TD (Polak et al.)—p = 0.0107 and Control (Polak et al.)—p = 0.001; TD (Tonacchera et al.)—p = 0.0035 and Control (Tonacchera et al.)—p = 0.0220; New Zealand (Watkins et al.)—p < 0.0001; Slovenia (Watkins et al.)—p < 0.0001; DT (Santarpia et al.)—p = 0.0018].