The effect of the increasing prevalence of maternal obesity on perinatal morbidity
1Center for Research in Women's Health, Department of Obstetrics and Gynecology, The University of Alabama at Birmingham, AL, USA.
Insights
Maternal obesity has significantly increased over 20 years, leading to higher risks of cesarean delivery, gestational diabetes, and large-for-gestational-age infants. Effective prevention strategies are crucial to manage these perinatal morbidities.
Area of Science:
- Reproductive Health
- Perinatal Medicine
- Public Health
Background:
- Maternal obesity prevalence has been rising globally.
- Obesity during pregnancy is associated with adverse maternal and infant outcomes.
- Understanding temporal trends in maternal obesity and its perinatal risks is essential for public health interventions.
Purpose of the Study:
- To assess temporal trends in maternal obesity over a 20-year period.
- To evaluate the relative and attributable perinatal risks associated with maternal obesity.
- To analyze changes in these risks across different 5-year intervals.
Main Methods:
- Retrospective cohort study utilizing a regional perinatal database (1980-1999).
- Inclusion criteria: women receiving prenatal care and delivering within the health system.
- Outcome measures: annual mean maternal weight, obesity prevalence (BMI > 29 kg/m², weight > 200 lb), and risks for cesarean delivery, gestational diabetes, and large-for-gestational-age infants.
Main Results:
- Mean maternal weight increased by 20% (144-172 lb) from 1980-1999.
- Obesity prevalence (BMI > 29 kg/m²) rose from 16.3% to 36.4%.
- Obese women faced increased risks for cesarean delivery (aRR 1.5-1.8), gestational diabetes (aRR 1.8-2.9), and large-for-gestational-age infants (aRR 1.8-2.2).
- Obesity-attributable cesarean deliveries increased from 3.9% to 11.6%; gestational diabetes from 12.8% to 29.6%; large-for-gestational-age infants from 6.5% to 19.1%.
Conclusions:
- Maternal obesity rates and associated perinatal risks have significantly increased over two decades.
- The rising prevalence of maternal obesity poses a substantial challenge to reducing perinatal morbidities.
- Effective interventions to prevent and manage maternal obesity are urgently needed to mitigate adverse perinatal outcomes.
Objective:
In this study, we assessed the temporal trends and relative and attributable perinatal risks of maternal obesity over a 20-year period.
Study Design:
We conducted a retrospective cohort study between 1980 and 1999 by using a computerized perinatal database of all women who received prenatal care and delivered their infants within a regional health care system. The main outcome measures were as follows: (1) annual mean body weight and the percentage of women classified as obese at the first prenatal visit (primary definition > or = 200 lb; secondary definitions > or = 250 lb, > or = 300 lb, body mass index > 29 kg/m(2)); and (2) relative and attributable risks of obesity for selected maternal and perinatal morbidities in successive 5-year periods.
Results:
From 1980 to 1999, the mean maternal weight of women at the first prenatal visit increased 20% (144-172 lb), as did the percentage of women > or = 200 lb (7.3-24.4), the percentage > or = 250 lb (1.9-10.7), the percentage > or = 300 lb (0.5-4.9), and the percentage with a body mass index > 29 kg/m(2) (16.3-36.4), P < .01 for all. Controlling for maternal age, race, and smoking status, obese women were at increased risk at each period for cesarean delivery (range of adjusted relative risk, 1.5-1.8), gestational diabetes (range, 1.8-2.9), and large (> 90th percentile) for gestational age infants (range, 1.8-2.2). From the earliest 5-year period (1980-1984) to the most recent (1995-1999), the percentage of obesity-attributable cesarean deliveries more than tripled from 3.9 to 11.6. Similar percentage increases were observed for the obesity-attributable risks for gestational diabetes (12.8-29.6) and large for gestational age infants (6.5-19.1). Trends for secondary obesity definitions were similar, although the magnitude of the increased attributable risks was smaller.
Conclusions:
Efforts to reduce the frequency of certain perinatal morbidities will be constrained unless effective measures to prevent, or limit the risks of, maternal obesity are developed and implemented.
More Related Videos
05:44Concurrent Collection of Fetal Murine Brain and Serum to Assess Effects of Maternal Diet on Nutrition and Neurodevelopment in Neurofibromatosis Type 1
Published on: May 17, 2024
03:19Modifying Levels of Maternal Dietary Folic Acid or Choline to Study the Impact of Deficiencies on Offspring Health Outcomes
Published on: June 28, 2024
Related Concept Videos
Teratogenicity
Obesity
Diabetes Mellitus: Type 2 and Gestational
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Development of the Oral Microbiota
