In recent decades, rates of type 2 diabetes mellitus (T2DM) and diabetic complications have reached epidemic proportions among Canadian Aboriginal people. Evidence in several populations suggests that abnormal birth weight, particularly low birth weight (LBW) and possibly high birth weight (HBW) may be linked to the development of T2DM. LBW often reflects poor maternal health/ nutritional status which may interfere with normal pancreatic development. HBW is a frequent complication of diabetic pregnancies which are associated with obesity and carbohydrate intolerance in adulthood. Since Saskatchewan Aboriginal newborns historically had higher rates of LBW, and more recently have experienced higher HBW rates, it follows that sub-optimal maternal/ fetal health may be important in the epidemic of T2DM in this population.<p>
This thesis describes a case-control study that used Saskatchewan Health databases to determine the relationship between birth weight and T2DM. A sample of 846 adult diabetic Registered Indians (RI) were age and sex matched to three control groups: 1) non-diabetic RI, 2) diabetic general population (GP) subjects, and 3) non-diabetic GP subjects. RI subjects were identified as such by the provincial Health Insurance Registration File.<p>
The results of this study show a significant association between HBW
(> 4000 grams) and T2DM for RI people [odds ratio (OR) 1.63; 95% confidence interval (CI) 1.20, 2.24]. This association increased in strength from the middle to the latter part of this century and was found to be stronger for RI females than RI males. The comparison of birth weights within the four study groups revealed that diabetic RI (16.2%) were significantly more likely (p<0.05) than controls (10.7%,10.0%, 7.5% respectively) to have HBW. An association between LBW and T2DM (< 2500 grams) was not evident within either RI or GP sample populations.<p>
The findings of this study support the hypothesis that HBW and its causes may be risk factors for T2DM among RI people. Programs to prevent gestational diabetes, and to diagnose and optimally manage diabetes during pregnancy could help to reduce rates of diabetes in future generations of Aboriginal peoples.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:SSU.etd-03112008-142258 |
| Date | 15 July 2008 |
| Creators | Klomp, Helena |
| Contributors | Tan, Leonard, Reeder, Bruce |
| Publisher | University of Saskatchewan |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://library.usask.ca/theses/available/etd-03112008-142258/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to University of Saskatchewan or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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