Table 1 Equations for regression lines and confidence ranges
From: Estimation of daily cadmium intake from cadmium in blood or cadmium in urine
Survey | X | Y | Typea | Equation | ||
|---|---|---|---|---|---|---|
The 1991–1997 survey (n = 30) | ||||||
Cd-B | Cd-D | 95 % UL | \( {\text{Y}} = + 10.18 + 7.19{\text{X}} + 1.772{\text{X}}^{2} \) | Eq. 1 | ||
(μg/l) | (μg/day) | RL | \( {\text{Y}} = - 1.13 + 14.36{\text{X}} \) | r = 0.76b | Eq. 2 | |
95 %LL | \( {\text{Y}} = - 12.43 + 21.54{\text{X}} - 1.772{\text{X}}^{2} \) | Eq. 3 | ||||
Cd-Ucr | Cd-D | 95 % UL | \( {\text{Y}} = + 12.84 + 3.33{\text{X}} + 0.169{\text{X}}^{2} \) | Eq. 4 | ||
(μg/g cr) | (μg/day) | RL | \( {\text{Y}} = + 5.35 + 4.90{\text{X}} \) | r = 0.79b | Eq. 5 | |
95 %LL | \( {\text{Y}} = - 2.13 + 6.48{\text{X}} - 0.169{\text{X}}^{2} \) | Eq. 6 | ||||
The 1977–1981 survey (n = 18) | ||||||
Cd-B | Cd-D | 95 % UL | \( {\text{Y}} = + 33.88 - 6.45{\text{X}} + 3.214{\text{X}}^{2} \) | |||
(μg/l) | (μg/day) | RL | \( {\text{Y}} = - 20. 3 2+ 1 7. 5 2 {\text{X}} \) | r = 0.68c | ||
95 %LL | \( {\text{Y}} = - 74.53 + 41.49{\text{X}} - 3.214{\text{X}}^{2} \) | |||||