Primary study · included by 1 review

Exploring the composition of placental microbiome and its potential origin in preterm birth

Saadaoui 2024 · Saadaoui Marwa, Djekidel Mohamed Nadhir, Murugesan Selvasankar, et al. · Frontiers in Cellular and Infection Microbiology · 2025

Included by

The role of oral dysbiosis in pregnancy complications: a systematic review and meta-analysis of preterm birth.
Non-Cochrane · aetiology · 2026 · cited as Saadaoui 2024 · Table 1; References
Outcome this study informsPooled effectEvidenceCertainty
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 1.09 [-0.55, 2.73]4 studies · 296 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 0.16 [-0.22, 0.53]2 studies · 114 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 1.37 [-0.83, 3.57]3 studies · 242 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 2.02 [-1.1, 5.15]2 studies · 182 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 1.07 [-0.48, 2.62]4 studies · 296 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 0.28 [-0.00, 0.56]3 studies · 200 participantsGRADE not reported
Oral microbiome alpha diversity (Shannon index)
Preterm birth (PTB) group vs Term birth (TB) group
MD 0.98 [-0.43, 2.38]4 studies · 296 participantsGRADE not reported

1 including review in total.