Table 2.
Associations between serum ferritin and dietary and health-related variables for Inuit women1
|
Dietary intake on the previous day, unit |
n |
|
Multivariate |
P-value |
|---|---|---|---|---|
| Coefficient3 | ||||
| Energy, MJ |
1123 |
7.56 (5.43-10.4) |
|
|
| Traditional food,% energy |
1123 |
6.8 (0-24) |
0.001 |
0.008 |
| Traditional food meat, g |
1123 |
81.6 (0-277) |
|
|
| All meat, g |
1123 |
235 (128-420) |
|
|
| Dietary iron, mg |
1123 |
12.8 (8.2-20.3) |
|
|
| Dietary iron from traditional food, mg |
1123 |
1.1 (0-9.0) |
|
|
| Dietary iron from non-traditional meats, mg |
1123 |
0.5 (0-2.0) |
|
|
| Heme iron, mg |
1123 |
4.0 (1.2-10.6) |
|
|
| Vitamin C, mg |
1123 |
59.0 (15.5-162.7) |
|
|
| Calcium, mg |
1123 |
388 (238-610) |
|
|
| Vitamin A, μg RAE |
1123 |
353 (161-684) |
|
|
| Tea, mL |
1123 |
0 (0-500) |
|
|
| Daily frequency of consumption, n/d |
|
|
|
|
| Sea mammals |
1105 |
0.08 (0.01-0.31) |
0.117 |
<0.001 |
| Game |
1105 |
0.27 (0.07-0.77) |
-0.034 |
0.095 |
| Fish |
1105 |
0.11 (0.02-0.29) |
-0.014 |
0.735 |
| Liver, all species |
1105 |
0 (0-0.02) |
0.303 |
0.022 |
| Iron status and other indicators |
|
|
|
|
| RBC LC-PUFA (% of total fatty acids) |
1197 |
3.67 (1.91-5.76) |
0.038 |
<0.001 |
| Serum hs-C-reactive protein (mg/L) |
1210 |
1.3 (0.4-3.4) |
0.031 |
<0.001 |
| Hemoglobin (g/L) |
1149 |
128 (119-136) |
0.009 |
<0.001 |
| Serum soluble transferrin receptor (mg/L) |
575 |
1.33 (1.12-1.63) |
-0.287 |
<0.001 |
| Serum ferritin (μg/L) |
1210 |
24.5 (14.0-51.0) |
- |
- |
| H. pylori positive | 1268 | 71.9 (69.4-74.3)2 | -0.047 | 0.044 |
1Values are median (interquartile range).
2Values are % (95% CI).
3After multivariate adjustment for menopausal status, adiposity, and oral contraceptive use. Associations of <0.005 were considered significant after applying the Bonferroni adjustment.