Incidence and risk factors of gestational diabetes in Karnataka Institute of Medical Sciences, Hubli

Vinaya G, Surekha S. M., Shivaganga Chiniwal


Background: Gestational diabetes is essentially the development of diabetes in pregnancy with a return to normal glucose tolerance after delivery. Objective of the study was to know incidence and risk factors of gestational diabetes in Karnataka Institute of Medical Sciences, Hubli.

Methods: This prospective study conducted in KIMS Hubli, for a period of one year from October 2009 to November 2010, in all pregnant women attending OPD of OBG Department. The number of cases included in the study was 200.

Results: Incidence of GDM was found to be 3.5% in the 200 patients studied. Patients were in the age group 18-36 yrs. There was increasing in the incidence after 25 yrs. There is gradual increase in prevalence of GCT positive case with increasing age. 60% of the patients had risk factors. Risk factors of importance were positive family history 40%, BMI>27 was 37.5%.

Conclusions: Gestational diabetes mellitus can be present in patients without risk factors. Hence the need for universal screening. Glucose challenge test with 75g glucose at 2 hours is highly sensitive in detecting GDM.


Age group, Gestational diabetes mellitus, Incidence, Risk water

Full Text:



Hyde J, Treloar E. Robert Fox. Progress in OBG. 16th edition. 52-72.

Diana R, Danilenko DMD, Winter V, Roger L, Nelson MD, Paul L, et al. Universal versus selective gestational diabetes screening : application of 1997 American Diabetes Association recommendations. Am J Obstet Gynecol. 1999;181:798-80.

Dorniorst A, Rossi M. Risk and prevention of type 2 diabetes in women with Gestational diabetes. Diabetes Care. 1998;21(2):43-9.

Sermer M, Naylor CD, Farine D. The Toronto Tri Hospital Gestational diabetes Project- a preliminary review. Diabetes Care. 1998;21(2):33-42.

First International Workshop. Conference on gestational diabetes mellitus summary and recommendations. Diabetes Care. 1980;3:499-501.

American Diabetes Association. Summary and recommendations of second International workshop conference on gestational diabetes mellitus. Diabetes care. 1985;34(2):123-6.

Metzger BE. The organising committee: summary and recommendations of third international workshop - conference on gestational diabetes mellitus. Diabetes. 1991;40 (2):197-201.

Coustan DR. ACOG Practice Bulletin number 30 gestational diabetes. Am J Obstet Gynecol. 2001;5:525-37.

Metzer BE, Coustan DR. Summary and recommendations of the fourth international workshop conference on gestational diabetes mellitus. Diabetes care. 1998;21:161-7.

Miller HC. The effect of prediabetic state on survival of the fetus and the birth weight of the new born infant. N Engl J Med. 1945;233:376-8.

Casson E. Screening and insulin sensitivity in gestational diabetes. Abstract volume of the 40th Annual Meeting of the EASD. 2004:350.

Dornhorst A, Paterson CM, Nicholls JS. High prevalence of gestational diabetes in women from ethnic minority groups. Diabet Med. 1992;9:820-5.

Beischer NA, Oats JN, Henry OA. Incidence and severity of gestational diabetes mellitus according to country of birth in women living in Australia. Diabetes. 1991;40(2):35-8.

Singh A. Screening of gestational diabetes mellitus-why? when? and bow? Obs Gynec. 2009;14(6):233.

Kjos SI, Henry 0A, Montoro M, Buchanan TA, Mestman requiring diabetes in pregnancy a randomized trial of induction of labor andexpectant management. Am J Obstet Gvnecol. 1993;169:611-5.

Ferrara A, Hedderson MM, Quesenberry CP, SelbyJ. Prevalence of GDM detected by NDDG or the CandC plasma glucose thresholds. Diabetes Care. 2002;25:1625-30.

Diabetes and pregnancy. American College of Obstetrician and Gynecologists Technical. 1994.

Sheskiab V, Balaji V, Balaji MS. One step for screening and diagnosis of gestational diabetes mellitus. J Obstet Gynecol India. 2005;55;525-9.

Anjalakshi K, Balaji H, Madhuri J. A single procedure to diagnose gestational diabetes mellitus. Ada Diabetol. 2009;46:51-4.

Esakoff T, Cheag Y, Caughey A. Screening for GDM: different cutoffs for different ethnicities? Am J Obstet Gyneco1. 2005;193:1040.

Bonomo M, Gandini ML, Mastropasqua A. The definition of screening methods for gestational diabetes study group of the lombardy section of the Italian society of diabetology. Am J Obstet Gynecol. 1998;179:179-85.

Seshiah V, Balaji V, Madhuri S, Balaj A, Paneerselvam T, Arthi M. Prevalence of gestational diabetes mellitus in South India (Tamil Nadu) a community based study. Assoc Physicians India. 2008;56:329-33.

Jang HC, Cho NH, Jung KB, Oh KS, Dooley SL, Metzger BE. Screening for gestational diabetes mellitus in Korea. Int J Gynecol Obstet. 1995;51:115-22.

Solomon CG, Willett WC, Carey VJ, Rich JE, Hunter DJ, Coldittz GA. A prospective study of pregravid determinants of gestational diabetes mellitus. JAMA. 1997;278:1078-83.

Terence T. Lao MD, Lai FH, Ben CP. Maternal age and prevalence of gestational diabetes mellitus. Diabetes Care. 2006;29:948-9.