Is Gestational Diabetes Mellitus Associated with Peripartum Infections?
Abstract
1. Introduction
2. Methods
2.1. Study Design
2.2. Study Groups
2.3. Outcomes
2.4. Data Collection
Socioeconomic status was assessed using the classification system established by the Israeli Central Bureau of Statistics, which assigns each municipal authority a score from 1 to 10. The ranking is based on a composite index incorporating residents’ income sources (e.g., employment, social benefits), housing conditions (including crowding and quality), ownership of household appliances, vehicle availability, educational attainment, employment characteristics, and additional demographic indicators [30]. For the purposes of this study, municipal authorities ranked in clusters 7 through 10 were defined as high socioeconomic status. This threshold aligns with commonly accepted divisions in Israeli population studies [31].
2.5. Statistical Analysis
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Variable | GDM Group (n = 1683) | Control Group (n = 1683) | p-Value |
---|---|---|---|
Age (years) | 31.7 ± 5.6 | 30.9 ± 6.9 | <0.0001 |
Age ≥ 35 * | 546 (32%) | 546 (32%) | 1 |
High socioeconomic status € | 22 (1.3%) | 35 (2.1%) | 0.08 |
Smoking | 139 (8%) | 113 (7%) | 0.09 |
Delivery week | 38.2 ± 1.6 | 38.7 ± 2.0 | <0.0001 |
Birth weight (gr) | 3198 ± 529 | 3211 ± 547 | 0.68 |
Primiparity * | 572 (34%) | 572 (34%) | 1 |
Pregnancy number | 3.1 ± 2.1 | 3.0 ± 2.0 | 0.12 |
Birth number | 2.5 ± 1.6 | 2.5 ± 1.5 | 0.33 |
Pre-gestational BMI (kg/m2) | 27.4 ± 5.8 | 26.0 ± 6.0 | <0.0001 |
Pre-gestational BMI ≥ 30 kg/m2 * | 476 (28%) | 476 (28%) | 1 |
Hypertensive disease in pregnancy ** | 179 (11%) | 129 (8%) | 0.003 |
Autoimmune disease | 14 (0.8%) | 21 (1.3%) | 0.24 |
Prophylactic antibiotic around delivery | 448 (27%) | 426 (25%) | 0.39 |
Epidural | 466 (28%) | 414 (25%) | 0.04 |
Preterm delivery * | 145 (9%) | 145 (9%) | 1 |
Cesarean delivery * | 453 (27%) | 453 (27%) | 1 |
Emergent cesarean delivery | 206 (12%) | 227 (13%) | 0.28 |
Operative delivery * | 64 (4%) | 69 (4%) | 0.66 |
Manual exploration of uterine cavity | 64 (3.8%) | 71 (4.2%) | 0.54 |
Neonate gender—Males | 888 (53%) | 886 (53%) | 0.76 |
Peripartum infection in previous delivery *** | 71/894 (8%) | 53/862 (6%) | 0.14 |
Outcome | GDM Group (n = 1683) | Control Group (n = 1683) | p-Value |
---|---|---|---|
All types of infections | 41 (2.4%) | 24 (1.4%) | 0.03 |
Peripartum infection | 26 (1.5%) | 14 (0.8%) | 0.056 |
Chorioamnionitis | 22 (1.3%) | 13 (0.8%) | 0.13 |
Endometritis | 22 (1.3%) | 14 (0.8%) | 0.18 |
Urinary tract infection | 11 (0.7%) | 7 (0.4%) | 0.34 |
Mastitis | 0 | 0 | - |
Respiratory infection | 0 | 0 | - |
Phlebitis | 0 | 0 | - |
Positive cultures * | 18 (1.1%) | 11 (0.7%) | 0.19 |
Type of Pathogen | ||
---|---|---|
Type of Infection | GDM Group Total Positive Cultures (n = 18) | Control Group Total Positive Cultures (n = 11) |
Chorioamnionitis | Escherichia (E.) coli—5 | E. coli—2 |
Enterococcus faecalis—2 | GBS | |
Group B Streptococcus (GBS) | Morganella morganii | |
Gardnerella vaginalis | Klebsiella pneumonia | |
Haemophilus haemolyticus | ||
Endometritis | E. coli—4 | E. coli—2 |
GBS | GBS | |
Haemophilus haemolyticus | Morganella morganii | |
Klebsiella pneumonia | ||
Urinary tract infection | E. coli—6 | E. coli—3 |
Klebsiella pneumonia—2 | Klebsiella pneumonia | |
Enterococcus faecalis—2 | Enterococcus faecalis—3 | |
Enterobacter aerogenes | Enterobacter aerogenes | |
GBS | ||
Bacteremia | Haemophilus haemolyticus | E. coli |
Outcome | GDM Group (n = 1230) | Control Group (n = 1230) | p-Value |
---|---|---|---|
All types of infections | 29 (2.4%) | 16 (1.3%) | 0.051 |
Peripartum infection | 18 (1.5%) | 10 (0.8%) | 0.13 |
Chorioamnionitis | 14 (1.1%) | 10 (0.8%) | 0.41 |
Endometritis | 16 (1.3%) | 10 (0.8%) | 0.24 |
Urinary tract infection | 8 (0.7%) | 5 (0.4%) | 0.4 |
Mastitis | 0 | 0 | - |
Respiratory infection | 0 | 0 | - |
Phlebitis | 0 | 0 | - |
Positive cultures * | 13 (1.1%) | 8 (0.7%) | 0.27 |
Outcome | GDM Group (n = 453) | Control Group (n = 453) | p-Value |
---|---|---|---|
All types of infections | 12 (2.7%) | 8 (1.8%) | 0.37 |
Peripartum infection | 8 (1.8%) | 4 (0.9%) | 0.25 |
Chorioamnionitis | 8 (1.8%) | 3 (0.7%) | 0.13 |
Endometritis | 6 (1.3%) | 4 (0.9%) | 0.52 |
Urinary tract infection | 3 (0.7%) | 2 (0.4%) | 1 |
Mastitis | 0 | 0 | - |
Respiratory infection | 0 | 0 | - |
Phlebitis | 0 | 0 | - |
Positive cultures * | 5 (1.1%) | 3 (0.7%) | 0.73 |
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Massalha, M.; Iskander, R.; Chazan, B.; Yefet, E.; Nachum, Z. Is Gestational Diabetes Mellitus Associated with Peripartum Infections? Microorganisms 2025, 13, 2030. https://doi.org/10.3390/microorganisms13092030
Massalha M, Iskander R, Chazan B, Yefet E, Nachum Z. Is Gestational Diabetes Mellitus Associated with Peripartum Infections? Microorganisms. 2025; 13(9):2030. https://doi.org/10.3390/microorganisms13092030
Chicago/Turabian StyleMassalha, Manal, Rula Iskander, Bibiana Chazan, Enav Yefet, and Zohar Nachum. 2025. "Is Gestational Diabetes Mellitus Associated with Peripartum Infections?" Microorganisms 13, no. 9: 2030. https://doi.org/10.3390/microorganisms13092030
APA StyleMassalha, M., Iskander, R., Chazan, B., Yefet, E., & Nachum, Z. (2025). Is Gestational Diabetes Mellitus Associated with Peripartum Infections? Microorganisms, 13(9), 2030. https://doi.org/10.3390/microorganisms13092030