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Appendix B: Derivation of Criteria for Interpretating Iron Intake in Women
Pages 115-119

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From page 115...
... The need for absorbed iron to balance these losses is then estimated using the upper limit of absorption of dietary iron that can be expected in persons ingesting a mixed diet, who are in need of iron, but maintaining body iron stores. The development of these components of the final estimate is described below.
From page 116...
... . A simple examination of the distribution of observed iron losses would lead to an underestimate of both loss and requirements of women replete with iron because women with high blood losses tend to have low hemoglobin levels (i.e., a tendency toward anemia)
From page 117...
... - (-0.81) , 0.84 where -0.81 is the mean of the distribution of logarithms of menstrual iron losses, 0.84 is the standard deviation of that distribution, and the probability that the observed intake would be inadequate to meet iron losses is computed by an algorithm describing the cumulative area under the normal distribution curve to the right of Z
From page 118...
... 1966. Menstrual blood loss -- a population study: Variation at different ages and attempts to define normality.
From page 119...
... Compiled by the Committee for the Revision of the Dietary Standard for Canada. Bureau of Nutritional Sciences, Food Directorate, Health Protection Branch, Department of National Health and Welfare.


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