Preconception health and pregnancy outcomes
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Preconception Health: Impact on Pregnancy Outcomes
Preconception Mental Health and Pregnancy Complications
Poor mental health before conception is linked to a higher risk of pregnancy complications, non-live births, and low birth weight babies. Women with poor preconception mental health are more likely to experience these adverse outcomes, making mental health a key modifiable risk factor for improving pregnancy results . Both maternal and paternal mental health before conception can influence outcomes; persistent mental health issues in fathers are associated with a higher risk of preterm birth, while maternal mental health problems during pregnancy also increase this risk . However, some studies found that even with severe preconception mental disorders, newborn well-being can remain good, though these women often have lower socioeconomic status .
Preconception Physical Health: Diabetes, Cardiovascular Health, and BMI
Preconception diabetes and impaired fasting glucose significantly increase the risk of spontaneous abortion, preterm birth, macrosomia, small for gestational age infants, birth defects, and perinatal infant death. Proper glycemic control before pregnancy is crucial to reduce these risks . Similarly, in women with systemic lupus erythematosus, poor preconception cardiovascular health—measured by BMI, cholesterol, and blood pressure—raises the likelihood of preterm birth and small for gestational age infants. Maintaining ideal cardiovascular health before pregnancy is important for better outcomes . High maternal BMI and interpregnancy weight gain are also associated with increased risks of adverse pregnancy and birth outcomes .
Preconception Exposures: Antibiotics and Lifestyle Factors
Exposure to certain antibiotics before conception, such as macrolides, sulfonamides, and trimethoprim, increases the risk of infertility, miscarriage, and congenital anomalies. In contrast, beta-lactams and quinolones may reduce infertility risk. These findings highlight the need for careful consideration of antibiotic use in women planning pregnancy . Other preconception exposures, such as advanced paternal age, also contribute to higher risks of adverse outcomes .
Preconception Interventions: Education, Counseling, and Supplementation
Preconception interventions in primary care, including risk assessment, education, and counseling, can improve maternal knowledge, self-efficacy, and health behaviors. However, current evidence does not strongly support that these interventions reduce adverse pregnancy outcomes, indicating a need for more research . Nutritional supplementation, especially with folic acid, before conception is strongly supported by evidence to reduce the risk of neural tube defects and birth defects 38. However, the impact of other preconception and periconception interventions on low birth weight, small for gestational age, and preterm birth remains uncertain .
Paternal Preconception Health
Emerging research suggests that paternal health before conception, including mental health and age, can affect pregnancy and birth outcomes. While most research has focused on maternal health, there is growing recognition of the father's role in influencing both short-term and long-term child outcomes 3910.
Conclusion
Preconception health—encompassing mental health, physical health, lifestyle factors, and targeted interventions—plays a significant role in determining pregnancy and birth outcomes. Optimizing both maternal and paternal health before conception, especially through mental health support, glycemic and cardiovascular control, careful medication use, and folic acid supplementation, can help reduce the risk of complications and improve the health of both mothers and their children. More high-quality research is needed to clarify the effectiveness of broader preconception interventions and to further understand the impact of paternal health.
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