A prospective observational study on correlation between the BMI of pregnant women and materno-fetal outcome

Authors

  • Divyani Agrawal Department of Obstetrics and Gynecology, East Point College of Medical Sciences & Research Centre, Bengaluru, Karnataka, India

DOI:

https://doi.org/10.18203/2320-1770.ijrcog20260879

Keywords:

BMI, Chronic diseases, Intervention, Nutritional, Pregnancy, Obese, Overweight, Underweight

Abstract

Background: Body Mass Index (BMI) during pregnancy is crucial to stipulate health risks. High pre-pregnancy BMI and/or excessive weight gain during pregnancy has negative implications on pregnancy outcomes, putting the health of mother and infant at risk also it amplifies the burden of chronic disease. Hence, public initiatives aiming in reduction of maternal and fetal morbidity and mortality can be vitalised by identification of high-risk population based on BMI leading to implementation of targeted interventions, such as nutritional counselling, weight management programs, and close monitoring during pregnancy.

Methods: This prospective observational study was conducted over a period of over 10months of duration from January 2025 to October 2025 among 500 pregnant women coming to ANC OPD who fulfilled the selection criteria and agreed to participate in study. The study aimed to assess the feto-maternal outcomes in pregnant women of different BMI categories.

Results: Out of 500 pregnant females, majority of pregnant females were in normal BMI category 59% (295) while rest were underweight 13% (65), overweight 22% (110), and obese 6% (30). The antenatal and postnatal complications were more in overweight and obese patients in comparison to normal weight and underweight. Also, the instrumental delivery and lscs rate were higher among the women with high BMI.

Conclusions: In developing countries like India both underweight and obesity poses a significant impact on the outcome of pregnancy.  Achieving an optimal weight gain for every pregnant woman is the basis for the development of a healthy population and an essential factor in the physiological course of pregnancy and childbirth and thus contributing to reduction in maternal and fetal mortality and morbidity.

References

Gandhi A, Sharma P, Kumar R, Singh V, Mehta S, Rao N, et al. Bioinformation. 2024;20(10):1257-60.

Lynch CM, Sexton DJ, Hession M, Morrison JJ. Obesity and mode of delivery in primigravid and multigravid women. Am J Perinatol. 2008;25(03):163-7. DOI: https://doi.org/10.1055/s-2008-1061496

O'Brien TE, Ray JG, Chan WS. Maternal body mass index and the risk of preeclampsia: a systematic overview. Epidemiol. 2003:368-74. DOI: https://doi.org/10.1097/01.EDE.0000059921.71494.D1

Kabiru W, Raynor BD. Obstetric outcomes associated with increase in BMI category during pregnancy. Am J Obstetr Gynecol. 2004;191(3):928-32. DOI: https://doi.org/10.1016/j.ajog.2004.06.051

Sahu MT, Agarwal A, Das V, Pandey A. Impact of maternal body mass index on obstetric outcome. J Obstetr Gynaecol Res. 2007;33(5):655-9. DOI: https://doi.org/10.1111/j.1447-0756.2007.00646.x

Abenhaim HA, Kinch RA, Morin L, Benjamin A, Usher R. Effect of prepregnancy body mass index categories on obstetrical and neonatal outcomes. Arch Gynecol Obstetr. 2007;275(1):39-43. DOI: https://doi.org/10.1007/s00404-006-0219-y

Juhasz G, Gyamfi C, Gyamfi P, Tocce K, Stone JL. Effect of body mass index and excessive weight gain on success of vaginal birth after cesarean delivery. Obstetr Gynecol. 2005;106(4):741-6 . DOI: https://doi.org/10.1097/01.AOG.0000177972.32941.65

Denison FC, Norrie G, Graham B, Lynch J, Harper N, Reynolds RM. Increased maternal BMI is associated with an increased risk of minor complications during pregnancy with consequent cost implications. Int J Obstetr Gynaecol. 2009;116(11):1467-72. DOI: https://doi.org/10.1111/j.1471-0528.2009.02222.x

Krishnamoorthy U, Schram CM, Hill SR. Maternal obesity in pregnancy: is it time for meaningful research to inform preventive and management strategies? Int J Obstetr Gynaecol. 2006;113(10):1134-40. DOI: https://doi.org/10.1111/j.1471-0528.2006.01045.x

Al Kibria GM, Swasey K, Hasan MZ, Sharmeen A, Day B. Prevalence and factors associated with underweight, overweight and obesity among women of reproductive age in India. Glob Heal Res Poli. 2019;4(1):24. DOI: https://doi.org/10.1186/s41256-019-0117-z

Sukumar M, Vikram NK, Ranjan P, Pandey M, Bhalla AS, Ramakrishnan L, et al. Linking non-alcoholic fatty liver disease severity with metabolic syndrome features: an integrative study on clinical and radiological fronts. Cureus. 2024;16(5):e59788. DOI: https://doi.org/10.7759/cureus.59788

Van Der Linden EL, Browne JL, Vissers KM, Antwi E, Agyepong IA, Grobbee DE, et al. Maternal body mass index and adverse pregnancy outcomes: A ghanaian cohort study. Obesity. 2016;24(1):215-22 DOI: https://doi.org/10.1002/oby.21210

Yazdani S, Yosofniyapasha Y, Nasab BH, Mojaveri MH, Bouzari Z. Effect of maternal body mass index on pregnancy outcome and newborn weight. BMC Res Note. 2012;5(1):34. DOI: https://doi.org/10.1186/1756-0500-5-34

Jenabi E, AslToghiri M. The effect of body mass index on delivery outcomes. Procedia-Social Behavioral Sci. 2011;28:465-9. DOI: https://doi.org/10.1016/j.sbspro.2011.11.089

Bhattacharya S, Campbell DM, Liston WA, Bhattacharya S. Effect of body mass index on pregnancy outcomes in nulliparous women delivering singleton babies. BMC Publ Heal. 2007;7(1):168. DOI: https://doi.org/10.1186/1471-2458-7-168

Bhavadharini B, Anjana RM, Deepa M, Jayashree G, Nrutya S, Shobana M, et al. Gestational weight gain and pregnancy outcomes in relation to body mass index in Asian Indian women. Ind J Endocrinol Metabol. 2017;21(4):588. DOI: https://doi.org/10.4103/ijem.IJEM_557_16

Weiss JL, Malone FD, Emig D, Ball RH, Nyberg DA, Comstock CH, et al. Obesity, obstetric complications and cesarean delivery rate–a population-based screening study. Am J Obstetr Gynecol. 2004;190(4):1091-7. DOI: https://doi.org/10.1016/j.ajog.2003.09.058

Wall PD, Deucy EE, Glantz JC, Pressman EK. Vertical skin incisions and wound complications in the obese parturient. Obstetr Gynecol. 2003;102(5):952-6. DOI: https://doi.org/10.1016/S0029-7844(03)00861-5

McGarrity L, O‟Connor R, Young S. A national survey of obstetric anaesthesia guidelines in the UK. Int J Obstetr Anesthes. 2008;17(4):322-8. DOI: https://doi.org/10.1016/j.ijoa.2008.04.006

Schulzeck S, Gleim M, Palm S. Anesthesia for cesarean section of obese women. Results of a four-year observation. Der Anaesthesist. 2003;52(9):787-94. DOI: https://doi.org/10.1007/s00101-003-0553-4

Lashen H, Fear K, Sturdee DW. Obesity is associated with increased risk of first trimester and recurrent miscarriage: matched case-control study. Human Reproduct. 2004;19(7):1644-6. DOI: https://doi.org/10.1093/humrep/deh277

Waller DK, Mills JL, Simpson JL, Cunningham GC, Conley MR, Lassman MR, et al. Are obese women at higher risk for producing malformed offspring?. Am J Obstetr Gynecol. 1994;170(2):541-8. DOI: https://doi.org/10.1016/S0002-9378(94)70224-1

Cedergren MI. Maternal morbid obesity and the risk of adverse pregnancy outcome. Obstetr Gynecol. 2004;103(2):219-24. DOI: https://doi.org/10.1097/01.AOG.0000107291.46159.00

Tharihalli C, Thathagari V. Study of correlation between maternal body mass index with maternal and perinatal outcome. Int J Reprod Contracept Obstet Gynecol. 2017;6:164-7. DOI: https://doi.org/10.18203/2320-1770.ijrcog20164650

Jayasinghe IU, Agampodi TC, Dissanayake AK, Agampodi SB. Early pregnancy metabolic syndrome and risk for adverse pregnancy outcomes: findings from Rajarata Pregnancy Cohort (RaPCo) in Sri Lanka. BMC Pregnan Childb. 2023;23(1):231. DOI: https://doi.org/10.1186/s12884-023-05548-y

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Published

2026-03-27

How to Cite

Agrawal, D. (2026). A prospective observational study on correlation between the BMI of pregnant women and materno-fetal outcome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 15(4), 1237–1241. https://doi.org/10.18203/2320-1770.ijrcog20260879

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Original Research Articles