TABLE 1.
Comparative distribution of EIA results for United Kingdom blood donor and Ghanaian child samples tested with VP2 genotype 1 and 3 antigens
| VP2G1Cam test result | No. of samples with VP2G3Cam test result
|
No. of samples discordant/total no. of samples | ||
|---|---|---|---|---|
| Positive | Negative | EQa | ||
| United Kingdom donorsb | ||||
| Positive | 271 | 0 | 2 | 2/273 |
| Negative | 0 | 125 | 0 | 0/125 |
| EQ | 0 | 1 | 1 | 1/2 |
| No. of samples discordant/total no. of samples | 0/271 | 1/126 | 2/3 | 3/400 |
| Ghanaian childrenc | ||||
| Positive | 30 | 1 | 2 | 3/33 |
| Negative | 0 | 359 | 2 | 2/361 |
| EQ | 2 | 1 | 3 | 3/6 |
| No. of samples discordant/total no. of samples | 2/32 | 2/361 | 4/7 | 8/400 |
a
EQ, equivocal.
b
Agreement of 99.3% (95% CI, 97.8 to 99.8) between samples tested with VP2G3Cam and VP2G1Cam was observed. Kappa and Spearman correlation coefficients were 0.98 and 0.97, respectively.
c
Agreement of 98.0% (95% CI, 96.1 to 99.1) between samples tested with VP2G3Cam and VP2G1Cam was observed. Kappa and Spearman correlation coefficients were 0.89 and 0.77, respectively.