. 2008 Jun 12;14:1094–1104.

Table 4. Statistical analysis of clinical parameters between anti-EsteD positive and negative patients of Vogt-Koyanagi-Harada disease.

Parameter	P (n=4)	N (n=12)	p value
Age (year)	35.8±12.7	42.1±10.3	0.41^a
Sex (M:F)	0:4	8:4	0.04^b
HLA-DR4	75% (n=4)	77.8% (n=9)	0.91^b
LogVA	-0.49±0.61	-0.42±0.21	0.84^a
IgG (mg/ml)	11.6±2.1	10.1±3.7	0.46^a

Four anti-EsteD antibody positive Vogt-Koyanagi-Harada (VKH) patients and 12 anti-EsteD antibody negative VKH patients were statistically compared their age, sex, Log visual acuity (VA), and serum concentration of total IgG. For the analysis of HLA-DR4, four anti-EsteD antibody positive and 9 anti-EsteD antibody negative VKH patients were analysed. Age, LogVA, and serum IgG concentration were compared by Student’s t test, and sex and the presence of HLA-DR4 were compared by Fisher’s exact probability test. Anti-EsteD antibody positive VKH patients were all female and it was statistically significant compared to anti-EsteD antibody negative VKH patients. There was no statistical difference in other examined factors. ^aStudent’s t test; ^bFisher’s exact probability test.