Abstract
Calcium absorption efficiency was measured two or three times each in 74 premenopausal and 142 postmenopausal women under conditions predicted to alter absorptive performance. A woman's absorptive consistency was evaluated across differing loads, differing intervals, and substances of differing intrinsic absorbability. In all these circumstances there was a statistically significant correlation between a woman's absorption under differing test situations accounting for up to 60% of the variance typically found in cross-sectional studies. For example, when the same substance but at differing load levels was tested three times over an 8 week period, various coefficients of correlation ranged from +0.773 to +0.849 (P <0.001). Even over intervals as long as 5 years correlation of absorption fraction within individuals remained significant (r = +0.487, P <0.001).
| Original language | English |
|---|---|
| Pages (from-to) | 1139-1142 |
| Number of pages | 4 |
| Journal | Journal of Bone and Mineral Research |
| Volume | 5 |
| Issue number | 11 |
| State | Published - 1990 |
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All Science Journal Classification (ASJC) codes
- Surgery
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Calcium absorptive consistency. / Heaney, R. P.; Weaver, C. M.; Fitzsimmons, M. L.; Recker, Robert R.
In: Journal of Bone and Mineral Research, Vol. 5, No. 11, 1990, p. 1139-1142.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Calcium absorptive consistency
AU - Heaney, R. P.
AU - Weaver, C. M.
AU - Fitzsimmons, M. L.
AU - Recker, Robert R.
PY - 1990
Y1 - 1990
N2 - Calcium absorption efficiency was measured two or three times each in 74 premenopausal and 142 postmenopausal women under conditions predicted to alter absorptive performance. A woman's absorptive consistency was evaluated across differing loads, differing intervals, and substances of differing intrinsic absorbability. In all these circumstances there was a statistically significant correlation between a woman's absorption under differing test situations accounting for up to 60% of the variance typically found in cross-sectional studies. For example, when the same substance but at differing load levels was tested three times over an 8 week period, various coefficients of correlation ranged from +0.773 to +0.849 (P <0.001). Even over intervals as long as 5 years correlation of absorption fraction within individuals remained significant (r = +0.487, P <0.001).
AB - Calcium absorption efficiency was measured two or three times each in 74 premenopausal and 142 postmenopausal women under conditions predicted to alter absorptive performance. A woman's absorptive consistency was evaluated across differing loads, differing intervals, and substances of differing intrinsic absorbability. In all these circumstances there was a statistically significant correlation between a woman's absorption under differing test situations accounting for up to 60% of the variance typically found in cross-sectional studies. For example, when the same substance but at differing load levels was tested three times over an 8 week period, various coefficients of correlation ranged from +0.773 to +0.849 (P <0.001). Even over intervals as long as 5 years correlation of absorption fraction within individuals remained significant (r = +0.487, P <0.001).
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M3 - Article
VL - 5
SP - 1139
EP - 1142
JO - Journal of Bone and Mineral Research
JF - Journal of Bone and Mineral Research
SN - 0884-0431
IS - 11
ER -