Table 1.
Serum ferritin levels and iron deficiency at study enrollment in Alaska Native adults with and without a Helicobacter pylori infection; Anchorage, Alaska; September, 1998 – December, 2000.
| Geometric mean ferritin |
Iron deficiencya |
|
|---|---|---|
| Study cohort (n=241) | 42 µg/L | 27 (11%) |
| Female (n=158) | 36 µg/L | 21 (13%) |
| <45 years (n=70) | 27 µg/L | 10 (14%) |
| 45 –<55 years (n=47) | 35 µg/L | 8 (17%) |
| ≥ 55 years (n=41) | 60 µg/L | 3 (7%) |
| Male (n=83) | 61 µg/L | 6 (7%) |
| <45 years (n=37) | 51 µg/L | 3 (8%) |
| 45 –<55 years (n=22) | 79 µg/L | 2 (9%) |
| ≥ 55 years (n=24) | 63 ug/L | 1 (4%) |
| H. pylori negativeb (n=120) | 50 µg/Lc | 8 (7%)d |
| H. pylori positiveb (n=121) | 37 µg/Lc | 19 (16%)d |
| cagA positivee (n=95) | 35 µg/Lf | 15 (16%) |
| cagA negative (n=10) | 60 µg/Lf | 1 (10%) |
a
serum ferritin level of <12.0 µg/L
b
urea breath test
c
p = 0.04 H. pylori negative vs. H. pylori positive
d
p = 0.02 H. pylori negative vs. H. pylori positive
e
includes persons with both cagA positive and cagA negative colonies
f
p = 0.14 cagA. positive vs. cagA negative