Table 1
99% Confidence intervals (CIs) of the Δδ13C values for each surveyed country calculated by the addition of the mean value and threefold SD
| 99% CI | ||||
| Δ(16EN-Etio) | Δ(16EN-A) | Δ(PD-Etio) | Δ(PD-A) | |
| Uganda (n = 28) | 2.8 | 2.3 | 3.0 | 2.3 |
| South Africa (n = 30) | 2.5 | 2.3 | 3.2 | 2.4 |
| Switzerland (n = 31) | 3.4 | 1.2 | 3.2 | 1.4 |
| Italy (n = 19) | 2.9 | 2.6 | 3.2 | 1.8 |
| Argentina (n = 31) | 2.6 | 1.9 | 2.7 | 1.7 |
| Japan (n = 32) | 3.2 | 2.9 | 2.5 | 2.3 |
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All values are in δ13CVPDB (‰).
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16EN, 16(5α)-androstenol; A, androsterone; Etio, etiocholanolone; PD, 5β-pregnanediol.
