Table 5 Linkage disequilibrium test of the commonly found CTLA-4 SNPs in the Chinese Han population of Western Guangdong province

Site1

0.495

0.548

0.431

0.810

0.304

0.464

Site2

–

0.138

0.761

0.439

0.478

0.320

Site3

–

–

0.391

0.512

0.120

0.391

Site4

–

–

–

0.229

0.291

0.600

Site5

–

–

–

–

0.278

0.064

Site6

–

–

–

–

–

0.419

r2:

Site2

Site3

Site4

Site5

Site6

Site7

Site1

0.076

0.073

0.054

0.520

0.077

0.062

Site2

–

0.005

0.538

0.076

0.059

0.095

Site3

–

–

0.041

0.051

0.013

0.041

Site4

–

–

–

0.019

0.020

0.361

Site5

–

–

–

–

0.051

0.000

Site6

–

–

–

–

–

0.042