Table 2.
ICAM4 allele frequencies in 97 Caucasian and 91 African American blood donors
| Allele* | Allele frequencies in the population
|
|||||
|---|---|---|---|---|---|---|
| Caucasian
|
African American
|
|||||
| Observed (n) | Mean † | 95% CI † | Observed (n) | Mean † | 95% CI ‡ | |
| KF712272 | 120¶ | 62% | 24.5% – 41.0% | 147¶ | 81% | 35.3% – 55.3% |
| KF725837 | 70¶ | 36% | 13% – 25.5% | 26¶ | 14% | 4.2% – 12.9% |
| KF725836 | 0 | 0% | 0% – 1.9% | 1 | 0.55% | 0.01% – 3.1% |
| KF725831 | 0 | 0% | 0% – 1.9% | 1 | 0.55% | 0.01% – 3.1% |
| KF725834 | 1 | 0.52% | 0.01% – 2.9% | 0 | 0% | 0% – 2% |
| KF725835 | 2 | 1% | 0.01% – 2.9% | 0 | 0% | 0% – 2% |
| KF725832 | 0¶ | 0% | 0% – 1.9% | 7¶ | 4% | 0.6% – 5.6% |
| KF725833 | 1 | 0.52% | 0% – 1.9% | 0 | 0% | 0% – 2% |
| Total | 194 | 182 | ||||
*
GenBank nucleotide database accession number
†
Number of observed alleles (n)/Total number of alleles
‡
95% confidence interval (CI), Poisson distribution, two sided
¶
Statistically significant difference by the Fisher’s exact test, two sided (p < 0.016); Bonferroni multiple comparison correction, n = 3, 0.05/3 = 0.016.