TABLE 1.
Statistical support for the association of host species with ancestry for the HA-H1, NA-N1, and PB2 segments of the A(H1N1)pdm09 lineagea
| Segment | Statistic | Observed value |
Null value |
Significance (P) | ||||
|---|---|---|---|---|---|---|---|---|
| Mean | Lower 95% CI | Upper 95% CI | Mean | Lower 95% CI | Upper 95% CI | |||
| HA-H1 | AI | 6.369 | 5.287 | 7.432 | 9.022 | 8.019 | 10.084 | 0.039 |
| PS | 35.842 | 34 | 37 | 40.909 | 39.477 | 41.750 | <0.01 | |
| NA-N1 | AI | 4.605 | 3.561 | 5.714 | 8.134 | 7.264 | 9.017 | <0.01 |
| PS | 32.886 | 31 | 35 | 45.541 | 44.012 | 46.573 | <0.01 | |
| PB2 | AI | 4.883 | 3.987 | 5.804 | 6.925 | 5.951 | 7.792 | <0.01 |
| PS | 28.680 | 28 | 30 | 38.070 | 36.591 | 38.858 | <0.01 | |
a
AI, association index; PS, parsimony score; CI, Bayesian credible interval.