Table 2.
Genotype and allele frequencies for all Indians and Caucasians (PsA patients + controls combined)
| Frequency, n (%) | Indians (n = 146)d |
Caucasians (n = 70)e |
p value | RR (95% CI) | OR (95% CI) |
|---|---|---|---|---|---|
| Genotype, n (%) | |||||
| GG | 68 (46.57) | 27 (38.57) | 0.4536a | ||
| GC | 68 (46.57) | 39 (55.71) | |||
| CC | 10 (6.85) | 4 (5.71) | |||
| GC + CC | 78 (53.42) | 43 (61.43) | 0.3064b | 1.11 (0.92–1.33) | 1.39 (0.78–2.48) |
| Allele, n (%) | |||||
| G | 204 (69.86) | 93 (66.43) | 0.5063c | 1.05 (0.91–1.22) | 1.17 (0.76–1.08) |
| C | 88 (30.14) | 47 (33.57) | |||
CI confidence interval, DF degrees of freedom, RR relative risk, OR odds ratio, PsA psoriatic arthritis, χ2 Chi-squared test
A p < 0.05 was considered as being significant
aChi squared p value (Indians genotypes vs. Caucasians genotypes); χ2 = 1.581, 2 DF. bFisher’s exact test p value (GG vs. GC + CC genotypes). cFisher’s exact test p value (Indians G and C alleles vs. Caucasians G and C alleles). dIndians (84 Indian PsA patients + 62 Indian controls). eCaucasians (32 Caucasian PsA patients + 38 Caucasian controls)