Table 2. The best fitting parameters for the TIBD model, with the 95% confidence intervals (CI) shown below, considering only individuals from the PCA groups A or B.
| Parameter | PCA Group | NA | NS,T | NC,S | NC,T | TS | TG |
|---|---|---|---|---|---|---|---|
| Best fit | A | 86,000 | 21,000 | 7.6∙106 | 450 | 15 | 15 |
| 95% CI | A | 81,000–97,000 | 2700–3.3∙105 | 1.1∙106–4.5∙109 | 100–6500 | 13–18 | 11–18 |
| Best fit | B | 90,000 | 56,000 | 1.5∙108 | 8 | 10 | 13 |
| 95% CI | B | 84,000–96,000 | 30–5.4∙106 | 2.2∙106–2.5∙1010 | 3–700 | 3–14 | 12–16 |
Shown are the Irish ancestral effective population size (NA), the initial Traveller effective population size (NS,T), the current Irish (NC,S) and Traveller (NC,T) effective population sizes, and the time in generations of the split (TS) and start of exponential Irish growth (TG).