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. 2020 Jun 24;2020(6):CD012970. doi: 10.1002/14651858.CD012970.pub2

Comparison 1. Probiotic versus placebo.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1.1 Hypertensive disorders (including pre‐eclampsia, pregnancy‐induced hypertension, eclampsia) 3 256 Risk Ratio (M‐H, Fixed, 95% CI) 1.50 [0.64, 3.53]
1.2 Mode of birth (caesarean) 3 267 Risk Ratio (M‐H, Random, 95% CI) 0.64 [0.30, 1.35]
1.3 Large‐for‐gestational age > 90 centile 2 174 Risk Ratio (M‐H, Fixed, 95% CI) 0.73 [0.35, 1.52]
1.4 Induction of labour 1 127 Risk Ratio (M‐H, Fixed, 95% CI) 1.33 [0.74, 2.37]
1.5 Postpartum haemorrhage 1 126 Risk Ratio (M‐H, Fixed, 95% CI) 0.77 [0.36, 1.62]
1.6 Weight gain during pregnancy (kg) 6 379 Mean Difference (IV, Fixed, 95% CI) 1.38 [‐0.49, 3.24]
1.7 Total gestational weight gain (kg) 3 239 Mean Difference (IV, Fixed, 95% CI) 0.24 [‐0.30, 0.78]
1.8 Relevant biomarker changes associated with the intervention 9   Mean Difference (IV, Fixed, 95% CI) Subtotals only
1.8.1 HOMA‐IR 7 505 Mean Difference (IV, Fixed, 95% CI) ‐0.30 [‐0.35, ‐0.25]
1.8.2 HOMA‐B 2 130 Mean Difference (IV, Fixed, 95% CI) ‐25.38 [‐38.32, ‐12.44]
1.8.3 Insulin (microIU/L) 7 505 Mean Difference (IV, Fixed, 95% CI) ‐1.04 [‐1.27, ‐0.80]
1.8.4 QUICKI 4 276 Mean Difference (IV, Fixed, 95% CI) 0.01 [0.00, 0.02]
1.8.5 TAG (Triglycerides) (mg/dL) 4 320 Mean Difference (IV, Fixed, 95% CI) ‐19.19 [‐35.69, ‐2.70]
1.8.6 VLDL cholesterol (mg/dL) 2 130 Mean Difference (IV, Fixed, 95% CI) ‐7.80 [‐12.93, ‐2.66]
1.8.7 LDL‐cholesterol (mg/dL) 4 320 Mean Difference (IV, Fixed, 95% CI) ‐5.36 [‐12.83, 2.12]
1.8.8 HDL‐cholesterol (mg/dL) 4 320 Mean Difference (IV, Fixed, 95% CI) ‐3.48 [‐6.02, ‐0.93]
1.8.9 Total cholesterol (mg/dL) 4 320 Mean Difference (IV, Fixed, 95% CI) ‐10.63 [‐19.73, ‐1.54]
1.8.10 hs‐CRP (µg/mL) 4 248 Mean Difference (IV, Fixed, 95% CI) ‐1.29 [‐1.72, ‐0.86]
1.8.11 NO (nitrous oxide)µmol/L 2 120 Mean Difference (IV, Fixed, 95% CI) 1.69 [‐0.95, 4.33]
1.8.12 MDA (malondialdehyde) (µmol/L) 3 176 Mean Difference (IV, Fixed, 95% CI) ‐0.85 [‐1.20, ‐0.50]
1.8.13 GSH (total glutathione µmol/L) 2 120 Mean Difference (IV, Fixed, 95% CI) 44.95 [13.36, 76.55]
1.8.14 Glutathione reductase (GSHR)(ng/mL) 1 56 Mean Difference (IV, Fixed, 95% CI) 5.78 [0.30, 11.26]
1.8.15 TAC (total antioxidant capacity)mmol/L 4 266 Mean Difference (IV, Fixed, 95% CI) 0.02 [‐0.05, 0.10]
1.8.16 IL‐10(pg/mL) 1 72 Mean Difference (IV, Fixed, 95% CI) ‐0.27 [‐2.93, 2.39]
1.8.17 IFN‐c 1 72 Mean Difference (IV, Fixed, 95% CI) ‐1.90 [‐9.38, 5.58]
1.8.18 IL‐6(pg/mL) 2 128 Mean Difference (IV, Fixed, 95% CI) ‐0.89 [‐1.17, ‐0.60]
1.8.19 TNF‐α(pg/mL) 2 128 Mean Difference (IV, Fixed, 95% CI) ‐0.53 [‐0.78, ‐0.27]
1.8.20 Serum uric acid (mg/dL) 1 56 Mean Difference (IV, Fixed, 95% CI) ‐0.21 [‐0.52, 0.10]
1.8.21 Erythrocyte superoxide dismutase (SOD) (U/gHBb) 1 56 Mean Difference (IV, Fixed, 95% CI) 189.20 [‐57.31, 435.71]
1.8.22 Erythrocyte glutathione peroxidase (GPx) (U/gHb) 1 56 Mean Difference (IV, Fixed, 95% CI) 6.93 [1.34, 12.52]
1.9 Use of additional pharmacotherapy 1   Risk Ratio (M‐H, Fixed, 95% CI) Totals not selected
1.9.1 Insulin therapy 1   Risk Ratio (M‐H, Fixed, 95% CI) Totals not selected
1.10 Glycaemic control during/ end of treatment (as defined by trialists) 7   Mean Difference (IV, Fixed, 95% CI) Subtotals only
1.10.1 Fasting blood glucose(mg/dL) 7 554 Mean Difference (IV, Fixed, 95% CI) ‐0.42 [‐1.66, 0.82]
1.10.2 Postprandial blood glucose(mg/dL) 0 0 Mean Difference (IV, Fixed, 95% CI) Not estimable
1.11 Gestational age at birth (days) 3 267 Mean Difference (IV, Fixed, 95% CI) 1.37 [‐1.33, 4.07]
1.12 Preterm birth 2 120 Risk Ratio (M‐H, Fixed, 95% CI) 1.00 [0.18, 5.59]
1.13 Macrosomia (> 4000 g) 3 267 Risk Ratio (M‐H, Fixed, 95% CI) 0.84 [0.50, 1.43]
1.14 Small‐for‐gestational age (SGA) 1 114 Risk Ratio (M‐H, Fixed, 95% CI) 1.04 [0.39, 2.76]
1.15 Birthweight (g) 4 324 Mean Difference (IV, Fixed, 95% CI) ‐79.14 [‐183.00, 24.73]
1.16 Head circumference (cm) 3 249 Mean Difference (IV, Fixed, 95% CI) ‐0.02 [‐0.52, 0.48]
1.17 Length (cm) 3 248 Mean Difference (IV, Fixed, 95% CI) ‐0.35 [‐1.03, 0.33]
1.18 Infant hypoglycemia requiring treatment (variously defined) 3 177 Risk Ratio (M‐H, Fixed, 95% CI) 0.85 [0.39, 1.84]
1.19 Hyperbilirubinemia 2 120 Risk Ratio (M‐H, Fixed, 95% CI) 0.18 [0.05, 0.57]
1.20 Relevant infant biomarker's associated with intervention (cord C peptide, cord insulin) 1 100 Mean Difference (IV, Fixed, 95% CI) ‐0.05 [‐0.44, 0.34]
1.20.1 Cord C peptide (ng/mL) 1 100 Mean Difference (IV, Fixed, 95% CI) ‐0.05 [‐0.44, 0.34]
1.21 Admission to NICU/nursery 2 202 Risk Ratio (M‐H, Random, 95% CI) 1.71 [0.45, 6.53]