Figure 6.

Presence of the A3669G polymorphism in NDs and in patients with PV, ET, and PMF. Individual subjects are indicated by unique alphanumeric codes. The presence of the GTTTA SNP was determined by PCR genotyping and confirmed by sequencing. Representative sequences are presented on the right. P values for the frequencies of the polymorphism in different groups were calculated with Fisher exact test and are presented on the right. The JAK2V617F status of the patients is reported for comparison. There was no difference in the mean JAK2V617F allele burden between patients with and without the polymorphism (P = .85 and .66 for PV and PMF patients, respectively, by Wilcoxon rank sum test).