Table II.

Frequency of alleles and genotypes of 1858 PTPN22 gene in controls, T1D and LADA

Allele/genotype PTPN22 1858	Controls (n = 151)	Type 1 diabetes (n = 175)	LADA (n = 80)
C	264 (87.4%)	284 (81.1%)	122 (76.2%)
T	38 (12.6%)	66 (18.9%)	38 (23.8%)
T1D vs. controls: χ2 = 4.76; p = 0.029, LADA vs. controls: χ2 = 9.5; p = 0.002
CC	114 (75.5)	120 (68.6%)	51 (63.7%)
CT	36 (23.8%)	44 (25.1%)	20 (25.0%)
TT	1 (0.7%)	11 (6.3%)	9 (11.3%)
T1D vs. controls: χ2 = 7.6; p = 0.023, LADA vs. controls: χ2 = 14.6; p = 0.0007