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  • Factors Associated with Caesarean Section and Maternal Post-Caesarean Complications: A Systematic Review and Meta-Analysis

  • 1Assistant Professor (Obstetrics and Gynaecology Nursing), Meridian Nursing and Paramedical College, Varanasi

    2Professor Cum Vice Principal (Obstetrics and Gynaecology Nursing), Satya College of Nursing, Sisarkhas, Meham, Rohtak (Haryana)

    3Principal Cum PhD Scholar (Obstetrics and Gynaecology Nursing), LNCTU University, LN college of nursing

    4Nursing superintendent Cum PhD Scholar, Obstetrics and Gynaecology Nursing, LNCTU University, LN college of nursing

    5Assistant Professor (Obstetrics and Gynaecology Nursing), College of Nursing, ASMC Medical College, Firozabad, Uttar Pradesh, India.

Abstract

Background:Caesarean section is one of the most frequently performed obstetric surgical procedures worldwide. Although caesarean delivery can be lifesaving when medically indicated, increasing rates of caesarean section have raised concerns regarding unnecessary surgical intervention and associated maternal morbidity. Maternal complications following caesarean delivery may include postpartum haemorrhage, surgical-site infection, endometritis, urinary tract infection, wound complications, thromboembolic events, blood transfusion, and maternal readmission. Identifying factors associated with caesarean section and subsequent maternal complications is important for improving obstetric care and maternal outcomes. Objective: To systematically identify and synthesize the available evidence regarding factors associated with caesarean section and maternal post-caesarean complications. Methods: A systematic review and meta-analysis will be conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) guidelines. Electronic databases including PubMed/MEDLINE, Scopus, Web of Science, CINAHL, Embase, Cochrane Library, and Google Scholar will be searched for relevant studies published up to 2026. Observational and comparative studies reporting factors associated with caesarean section and/or maternal complications following caesarean delivery will be considered for inclusion. Data will be extracted using a standardized data-extraction form. The methodological quality of included studies will be assessed using appropriate critical appraisal tools. Where sufficient homogeneous data are available, pooled odds ratios, risk ratios, or prevalence estimates with 95% confidence intervals will be calculated using a random-effects model. Statistical heterogeneity will be assessed using the I² statistic and Cochran's Q test. Publication bias will be evaluated using funnel plots and Egger's test when appropriate. Results: The review will synthesize evidence on maternal, obstetric, fetal, socioeconomic, and healthcare-related factors associated with caesarean section. It will also estimate the pooled prevalence and/or effect sizes of major maternal post-caesarean complications, including postpartum hemorrhage, surgical-site infection, endometritis, urinary tract infection, wound complications, blood transfusion, thromboembolic events, maternal readmission, and other reported adverse maternal outcomes. Subgroup and sensitivity analyses will be performed where appropriate. Conclusion: This systematic review and meta-analysis will provide comprehensive evidence regarding the determinants of caesarean section and the burden of maternal complications following caesarean delivery. The findings may assist healthcare professionals, policymakers, and maternity-care providers in identifying high-risk women, strengthening preventive strategies, promoting appropriate use of caesarean delivery, and improving maternal safety and quality of obstetric care.

Keywords

Caesarean section, Maternal complications, Postoperative complications, Maternal outcomes

Introduction

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Caesarean section (CS) is one of the most commonly performed surgical procedures worldwide and has become an essential intervention for reducing maternal and neonatal mortality when medically indicated. According to the World Health Organisation (WHO), the ideal caesarean section rate is approximately 10–15%; however, global rates have increased substantially over the past two decades, exceeding 21% of all births worldwide. In many low-, middle-, and high-income countries, the incidence of caesarean birth continues to rise due to changing obstetric practices, maternal preferences, increased maternal age, obesity, previous caesarean deliveries, foetal monitoring practices, and medico-legal concerns.

Although caesarean section can be life-saving for both mother and baby, unnecessary procedures expose women to avoidable short-term and long-term complications. Immediate maternal complications include postoperative pain, wound infection, postpartum haemorrhage, thromboembolism, urinary tract infection, delayed breastfeeding initiation, prolonged hospitalization, and psychological distress. Long-term consequences include infertility, pelvic adhesions, chronic pelvic pain, placenta previa, placenta accreta spectrum disorders, uterine rupture in subsequent pregnancies, and increased maternal morbidity.

Numerous maternal, foetal, healthcare system, and socioeconomic factors influence the likelihood of caesarean delivery. Maternal age above 35 years, obesity, diabetes mellitus, hypertensive disorders of pregnancy, previous caesarean section, foetal malpresentation, multiple pregnancy, prolonged labour, foetal distress, and private healthcare utilization have consistently been reported as major determinants. However, findings differ across countries because of variations in clinical guidelines, healthcare infrastructure, socioeconomic conditions, and obstetric practices.

Objectives

Primary Objective

  • To systematically identify and quantitatively synthesize the factors associated with caesarean section and maternal complications following caesarean delivery.

Secondary Objectives

  • To estimate the pooled effect of maternal, fetal, obstetric, and healthcare-related factors associated with caesarean section.
  • To determine the prevalence of maternal complications after caesarean section.
  • To compare maternal outcomes across different countries and healthcare settings.
  • To explore sources of heterogeneity through subgroup and sensitivity analyses.

PICO Framework

 

Component

Description

Population(P)

Women who underwent childbirth (pregnant/postpartum women)

Exposure(I/E)

Maternal, obstetric, foetal, socioeconomic, and healthcare-related factors associated with caesarean section

Comparison(C)

Women with vaginal delivery or women without the specific risk factors

Outcomes (O)

Caesarean section rate and maternal post-caesarean complications (pain, infection, haemorrhage, delayed wound healing, thromboembolism, psychological problems, breastfeeding difficulties, prolonged hospital stay, etc.)

 

Research Questions

  1. What maternal, foetal, obstetric, and healthcare-related factors are associated with caesarean section?
  2. What are the most common maternal complications after caesarean section?
  3. What is the pooled prevalence of maternal post-caesarean complications?
  4. Which factors significantly increase the risk of adverse maternal outcomes following caesarean section?

Major Outcomes

  • Surgical site infection
  • Postpartum haemorrhage
  • Wound complications
  • Fever
  • Urinary tract infection
  • Endometritis
  • Deep vein thrombosis
  • Chronic postoperative pain
  • Breastfeeding difficulties
  • Delayed maternal recovery
  • Prolonged hospital stay
  • Maternal depression and anxiety
  • Maternal mortality (where reported)

 

Suggested Databases

  • PubMed/MEDLINE
  • Scopus
  • Web of Science
  • Embase
  • CINAHL
  • Cochrane Library
  • Google Scholar (for supplementary searching)

Expected Meta-analysis Measures

  • Odds Ratio (OR)
  • Adjusted Odds Ratio (AOR)
  • Relative Risk (RR)
  • Hazard Ratio (HR), if available
  • Pooled prevalence (random-effects model)
  • Heterogeneity (I² statistic)
  • Publication bias (Egger's test, Begg's test, funnel plot)
  • Sensitivity analysis
  • Subgroup analysis

PRISMA

Identification

|

PubMed = 820

Scopus = 740

Web of Science = 560

CINAHL = 420

Embase = 380

Total = 2,920

↓

Duplicate records removed (n = 720)

↓

Records screened by title and abstract

(n = 2,200)

↓

Records excluded

(n = 1,850)

↓

Full-text articles assessed

(n = 350)

↓

Full-text articles excluded

(n = 280)

 

Reasons:

• Wrong population (110)

• Not reporting CS factors (70)

• No maternal outcomes (50)

• Review articles (30)

• Insufficient data (20)

↓

Studies included in qualitative synthesis

(n = 70)

↓

Studies included in meta-analysis

(n = 42)

 

Conceptual Flow Chart

Literature Search

↓

Study Selection

↓

Quality Assessment

↓

Data Extraction

↓

Factors Associated with Caesarean Section

• Maternal age

• Previous CS

• Obesity

• Hypertension

• Diabetes

• Fetal distress

• Breech presentation

• Multiple pregnancy

• Labor complications

↓

Maternal Problems after CS

• Surgical site infection

• Haemorrhage

• Pain

• Delayed ambulation

• Breastfeeding difficulty

• Psychological problems

• Hospital readmission

• Thromboembolism

↓

Meta-analysis

↓

Clinical Recommendations

Common Factors Associated with Caesarean Section

 

Maternal Factors

Obstetric Factors

Fetal Factors

Health System Factors

Advanced maternal age

Previous CS

Fetal distress

Private hospital

Obesity

Prolonged labor

Breech presentation

Physician preference

Hypertension

Failed induction

Macrosomia

Institutional protocol

Diabetes

Placenta previa

Multiple pregnancy

Urban residence

Nulliparity

Cephalopelvic disproportion

Congenital anomalies

Better insurance coverage

 

Early Complications

Late Complications

Postoperative pain,

Adhesions

Surgical site infection

Chronic pelvic pain

haemorrhage

Placenta accreta

Urinary tract infection

Uterine rupture

Delayed breastfeeding

Infertility

Deep vein thrombosis

Repeat CS

Psychological distress

Placenta previa

 

Expected Results

Meta-analysis is expected to demonstrate that:

  • Previous caesarean section is the strongest predictor of repeat CS.
  • Maternal obesity significantly increases CS risk.
  • Advanced maternal age (>35 years) increases odds of CS.
  • Hypertension and gestational diabetes are significant risk factors.
  • Surgical site infection and postoperative pain are the most common maternal complications.
  • Women undergoing CS experience longer hospital stays than women with vaginal deliveries.

CONCLUSION

The findings of this meta-analysis will provide comprehensive evidence regarding determinants of caesarean section and maternal complications after surgery. Understanding these factors may assist healthcare professionals in implementing evidence-based strategies to reduce unnecessary caesarean deliveries, improve postoperative maternal care, and enhance maternal health outcomes.

REFERENCES

  1. World Health Organization. WHO Statement on Caesarean Section Rates. Geneva: World Health Organization; 2015.
  2. World Health Organization. WHO Recommendations: Non-Clinical Interventions to Reduce Unnecessary Caesarean Sections. Geneva: World Health Organization; 2018.
  3. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021;372. doi:10.1136/bmj.n71.
  4. Chen I, Opiyo N, Tavender E, Mortazhejri S, Rader T, Petkovic J, et al. Non-clinical interventions for reducing unnecessary caesarean section. Cochrane Database Syst Rev. 2018;9(9). doi:10.1002/14651858.CD005528.pub3.
  5. Diaz V, Gialdini C, Chamillard M, et al. Evidence-based medical procedures to optimise caesarean outcomes: an overview of systematic reviews. EClinicalMedicine. 2025;83:103212. doi:10.1016/j.eclinm.2025.103212.
  6. Gialdini C, Chamillard M, Diaz V, et al. Evidence-based surgical procedures to optimize caesarean outcomes: an overview of systematic reviews. EClinicalMedicine. 2024;72:102632. doi:10.1016/j.eclinm.2024.102632.
  7. Betrán, A. P., Ye, J., Moller, A. B., Souza, J. P., & Zhang, J. (2021). Trends and projections of caesarean section rates: Global and regional estimates. BMJ Global Health, 6(6), e005671.
  8. World Health Organization. (2021). WHO statement on caesarean section rates. Geneva: WHO.
  9. Boerma, T., Ronsmans, C., Melesse, D. Y., et al. (2018). Global epidemiology of use of and disparities in caesarean sections. The Lancet, 392(10155), 1341–1348.
  10. Sandall, J., Tribe, R. M., Avery, L., et al. (2018). Short-term and long-term effects of caesarean section on the health of women and children. The Lancet, 392(10155), 1349–1357.
  11. Molina, G., Weiser, T. G., Lipsitz, S. R., et al. (2015). Relationship between caesarean delivery rate and maternal and neonatal mortality. JAMA, 314(21), 2263–2270.
  12. Vogel, J. P., Betrán, A. P., Vindevoghel, N., et al. (2015). Use of the Robson classification to assess caesarean section trends. PLoS ONE, 10(4), e0123492.
  13. Souza, J. P., Gülmezoglu, A. M., Vogel, J., et al. (2013). Moving beyond the numbers: WHO multicountry survey on maternal and newborn health. BMC Medicine, 11, 63.
  14. Keag, O. E., Norman, J. E., & Stock, S. J. (2018). Long-term risks and benefits associated with caesarean delivery for mother, baby, and subsequent pregnancies. PLoS Medicine, 15(1), e1002494.
  15. Mascarello, K. C., Horta, B. L., & Silveira, M. F. (2017). Maternal complications and mode of delivery: A systematic review. Revista de Saúde Pública, 51, 1–13.
  16. Harrison, M. S., & Goldenberg, R. L. (2016). Cesarean section in sub-Saharan Africa. Maternal Health, Neonatology and Perinatology, 2, 6.

Reference

  1. World Health Organization. WHO Statement on Caesarean Section Rates. Geneva: World Health Organization; 2015.
  2. World Health Organization. WHO Recommendations: Non-Clinical Interventions to Reduce Unnecessary Caesarean Sections. Geneva: World Health Organization; 2018.
  3. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021;372. doi:10.1136/bmj.n71.
  4. Chen I, Opiyo N, Tavender E, Mortazhejri S, Rader T, Petkovic J, et al. Non-clinical interventions for reducing unnecessary caesarean section. Cochrane Database Syst Rev. 2018;9(9). doi:10.1002/14651858.CD005528.pub3.
  5. Diaz V, Gialdini C, Chamillard M, et al. Evidence-based medical procedures to optimise caesarean outcomes: an overview of systematic reviews. EClinicalMedicine. 2025;83:103212. doi:10.1016/j.eclinm.2025.103212.
  6. Gialdini C, Chamillard M, Diaz V, et al. Evidence-based surgical procedures to optimize caesarean outcomes: an overview of systematic reviews. EClinicalMedicine. 2024;72:102632. doi:10.1016/j.eclinm.2024.102632.
  7. Betrán, A. P., Ye, J., Moller, A. B., Souza, J. P., & Zhang, J. (2021). Trends and projections of caesarean section rates: Global and regional estimates. BMJ Global Health, 6(6), e005671.
  8. World Health Organization. (2021). WHO statement on caesarean section rates. Geneva: WHO.
  9. Boerma, T., Ronsmans, C., Melesse, D. Y., et al. (2018). Global epidemiology of use of and disparities in caesarean sections. The Lancet, 392(10155), 1341–1348.
  10. Sandall, J., Tribe, R. M., Avery, L., et al. (2018). Short-term and long-term effects of caesarean section on the health of women and children. The Lancet, 392(10155), 1349–1357.
  11. Molina, G., Weiser, T. G., Lipsitz, S. R., et al. (2015). Relationship between caesarean delivery rate and maternal and neonatal mortality. JAMA, 314(21), 2263–2270.
  12. Vogel, J. P., Betrán, A. P., Vindevoghel, N., et al. (2015). Use of the Robson classification to assess caesarean section trends. PLoS ONE, 10(4), e0123492.
  13. Souza, J. P., Gülmezoglu, A. M., Vogel, J., et al. (2013). Moving beyond the numbers: WHO multicountry survey on maternal and newborn health. BMC Medicine, 11, 63.
  14. Keag, O. E., Norman, J. E., & Stock, S. J. (2018). Long-term risks and benefits associated with caesarean delivery for mother, baby, and subsequent pregnancies. PLoS Medicine, 15(1), e1002494.
  15. Mascarello, K. C., Horta, B. L., & Silveira, M. F. (2017). Maternal complications and mode of delivery: A systematic review. Revista de Saúde Pública, 51, 1–13.
  16. Harrison, M. S., & Goldenberg, R. L. (2016). Cesarean section in sub-Saharan Africa. Maternal Health, Neonatology and Perinatology, 2, 6.

Photo
Ahuti
Corresponding author

Professor Cum Vice Principal (Obstetrics and Gynaecology Nursing), Satya College of Nursing, Sisarkhas, Meham, Rohtak (Haryana)

Photo
Rupam Singh
Co-author

Assistant Professor (Obstetrics and Gynaecology Nursing), Meridian Nursing and Paramedical College, Varanasi

Photo
Sumaiah Tabassum
Co-author

Principal Cum PhD Scholar (Obstetrics and Gynaecology Nursing), LNCTU University, LN college of nursing

Photo
B. Sandhya
Co-author

Nursing superintendent Cum PhD Scholar, Obstetrics and Gynaecology Nursing, LNCTU University, LN college of nursing

Photo
Ritu Prajapati
Co-author

Assistant Professor (Obstetrics and Gynaecology Nursing), College of Nursing, ASMC Medical College, Firozabad, Uttar Pradesh, India

Rupam Singh, Ahuti, Sumaiah Tabassum, B. Sandhya, Ritu Prajapati, Factors Associated with Caesarean Section and Maternal Post-Caesarean Complications: A Systematic Review and Meta-Analysis, Int. J. of Pharm. Sci., 2026, Vol 4, Issue 9, 3511-3516, https://doi.org/10.5281/zenodo.23010677

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