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Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project.
Can J Diabetes. 2020 Oct; 44(7):597-604.CJ

Abstract

OBJECTIVES

Because of the immediate and long-term consequences of diabetes in pregnancy (DIP) for mother and child, we compared frequencies of gestational diabetes (GDM) and pre-GDM between First Nations (FN) and non-FN people in Saskatchewan from 1980 to 2009.

METHODS

Using Ministry of Health administrative databases, we conducted a retrospective cohort study of GDM and pre-GDM rates within all FN and non-FN pregnancies in Saskatchewan. Annual crude and 10-year age-adjusted incidence of GDM and pre-GDM were determined as were maternal age-specific rates of DIP.

RESULTS

De-identified data were obtained for 69,176 FN and 344,410 non-FN pregnancies. The crude annual incidence of GDM rose from 1.0% to 6.6% among FN and from 0.4% to 3.6% among non-FN between 1980 and 2009. The crude annual incidence of pre-GDM rose from 0.7% to 2.0% among FN and from 0.4% to 0.9% among non-FN over the same period. The 10-year age-standardized incidence of GDM increased from 3.53% in 1980-1989 to 8.37% in 2000-2009 for FN, and from 1.55% to 3.13% for non-FN. For pre-GDM, the corresponding increases were from 1.65% to 3.26% for FN and from 0.5% to 0.91% for non-FN. Both GDM and pre-GDM rates increased with increasing maternal age, reaching 10.9% and 8.0% of FN pregnancies, and 7.7% and 1.1% of non-FN pregnancies, respectively, for mothers >40 years old.

CONCLUSIONS

The proportion of pregnancies complicated by DIP increased steadily among FN and non-FN women in Saskatchewan in 1980‒2009, but the incidence of GDM and pre-GDM is 2- to 3-fold higher among FN.

Authors+Show Affiliations

Department of Medicine (Canadian Center for Health and Safety in Agriculture), University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. Electronic address: roland.dyck@usask.ca.Department of Medicine (Canadian Center for Health and Safety in Agriculture), University of Saskatchewan, Saskatoon, Saskatchewan, Canada.Department of Medicine (Canadian Center for Health and Safety in Agriculture), University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.Ministry of Health, Government of Saskatchewan, Regina, Saskatchewan, Canada.Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Computer Science, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31987766

Citation

Dyck, Roland F., et al. "Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project." Canadian Journal of Diabetes, vol. 44, no. 7, 2020, pp. 597-604.
Dyck RF, Karunanayake C, Pahwa P, et al. Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project. Can J Diabetes. 2020;44(7):597-604.
Dyck, R. F., Karunanayake, C., Pahwa, P., Stang, M., & Osgood, N. D. (2020). Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project. Canadian Journal of Diabetes, 44(7), 597-604. https://doi.org/10.1016/j.jcjd.2019.10.005
Dyck RF, et al. Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project. Can J Diabetes. 2020;44(7):597-604. PubMed PMID: 31987766.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Epidemiology of Diabetes in Pregnancy Among First Nations and Non-First Nations Women in Saskatchewan, 1980‒2013. Part 1: Populations, Methodology and Frequencies (1980‒2009); Results From the DIP: ORRIIGENSS Project. AU - Dyck,Roland F, AU - Karunanayake,Chandima, AU - Pahwa,Punam, AU - Stang,MaryRose, AU - Osgood,Nathaniel D, Y1 - 2019/11/01/ PY - 2019/06/07/received PY - 2019/09/23/revised PY - 2019/10/16/accepted PY - 2020/1/29/pubmed PY - 2020/1/29/medline PY - 2020/1/29/entrez KW - First Nations KW - Premières Nations KW - diabetes in pregnancy KW - diabète gestationnel KW - diabète pendant la grossesse KW - diabète prégestationnel KW - epidemiology KW - gestational diabetes KW - incidence KW - nombre de cas KW - pregestational diabetes KW - épidémiologie SP - 597 EP - 604 JF - Canadian journal of diabetes JO - Can J Diabetes VL - 44 IS - 7 N2 - OBJECTIVES: Because of the immediate and long-term consequences of diabetes in pregnancy (DIP) for mother and child, we compared frequencies of gestational diabetes (GDM) and pre-GDM between First Nations (FN) and non-FN people in Saskatchewan from 1980 to 2009. METHODS: Using Ministry of Health administrative databases, we conducted a retrospective cohort study of GDM and pre-GDM rates within all FN and non-FN pregnancies in Saskatchewan. Annual crude and 10-year age-adjusted incidence of GDM and pre-GDM were determined as were maternal age-specific rates of DIP. RESULTS: De-identified data were obtained for 69,176 FN and 344,410 non-FN pregnancies. The crude annual incidence of GDM rose from 1.0% to 6.6% among FN and from 0.4% to 3.6% among non-FN between 1980 and 2009. The crude annual incidence of pre-GDM rose from 0.7% to 2.0% among FN and from 0.4% to 0.9% among non-FN over the same period. The 10-year age-standardized incidence of GDM increased from 3.53% in 1980-1989 to 8.37% in 2000-2009 for FN, and from 1.55% to 3.13% for non-FN. For pre-GDM, the corresponding increases were from 1.65% to 3.26% for FN and from 0.5% to 0.91% for non-FN. Both GDM and pre-GDM rates increased with increasing maternal age, reaching 10.9% and 8.0% of FN pregnancies, and 7.7% and 1.1% of non-FN pregnancies, respectively, for mothers >40 years old. CONCLUSIONS: The proportion of pregnancies complicated by DIP increased steadily among FN and non-FN women in Saskatchewan in 1980‒2009, but the incidence of GDM and pre-GDM is 2- to 3-fold higher among FN. SN - 2352-3840 UR - https://www.unboundmedicine.com/medline/citation/31987766/Epidemiology_of_Diabetes_in_Pregnancy_Among_First_Nations_and_Non_First_Nations_Women_in_Saskatchewan_1980‒2013__Part_1:_Populations_Methodology_and_Frequencies__1980‒2009_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1499-2671(19)30680-X DB - PRIME DP - Unbound Medicine ER -
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