TABLE 2.
Associations of Yup'ik traditional food intakes with the NIR of RBCs (n = 68) and hair (n = 58)1
| RBC NIR | Hair NIR | ||||
|---|---|---|---|---|---|
| Dietary variable | % of energy | r 2 (95% CI) | P | r 2 (95% CI) | P |
| Fish | 10 ± 10 | 0.65 (0.48, 0.77) | <0.0001 | 0.67 (0.50, 0.79) | <0.0001 |
| Marine mammals | 6 ± 8 | 0.74 (0.60, 0.83) | <0.0001 | 0.65 (0.47, 0.78) | <0.0001 |
| Land mammals | 2 ± 3 | 0.21 (−0.03, 0.43) | 0.08 | 0.23 (−0.03, 0.46) | 0.08 |
| Birds | 1 ± 3 | 0.21 (−0.03, 0.43) | 0.08 | 0.13 (−0.13, 0.38) | 0.32 |
| Greens | 0.1 ± 0.3 | 0.36 (0.14, 0.55) | 0.002 | 0.30 (0.05, 0.52) | 0.02 |
| Berries | 0.4 ± 0.8 | 0.57 (0.39, 0.71) | <0.0001 | 0.57 (0.36, 0.72) | <0.0001 |
| Total traditional foods | 20 ± 18 | 0.78 (0.66, 0.86) | <0.0001 | 0.75 (0.61, 0.85) | <0.0001 |
1
NIR, nitrogen isotope ratio, expressed as δ15N values.
2
Pearson's product moment correlation.