Table 3.
Ferritin levels and iron deficiency in Alaska Native persons successfully treated for a Helicobacter pylori infection and followed for 24 months; Anchorage, Alaska; September, 1998 – December, 2002.
| All participants | Participants with iron deficiency at enrollment |
||||
|---|---|---|---|---|---|
| Visit | Geometric mean ferritina |
Iron deficiencyb | Geometric mean ferritin |
Iron deficiency | |
| Enrollment | 36.5 µg/L (n=87) | 17% (15/87) | 4.8µg/L (n=15) | 100% (15/15) | |
| 2 month | 34.3 µg/L (n=83) | 17% (14/83) | 6.8 µg/L (n=14) | 71% (10/14) | |
| 4 month | 43.2 µg/L (n=69) | 13% (9/69) | 7.5 µg/L (n=10) | 60% (6/10) | |
| 6 month | 34.0 µg/L (n=62) | 21% (13/62) | 7.9 µg/L (n=10) | 73% (8/11) | |
| 12 month | 43.7 µg/L (n=63) | 17% (11/63) | 9.4 µg/L (n=11) | 45 % (5/11) | |
| 24 month | 49.6 µg/L (n=66) | 15% (10/66) | 10.8 µg/L (n=11) | 55% (6/11) | |
a
The number of observations vary because 1) each participant did not have a serum ferritin measured at every time point and 2) participants were removed from further analysis at the time point they had an iron supplement prescription documented in their medical record.
b
serum ferritin level of <12.0 µg/L