Metronidazole (all routes except local only) updated on 01-29-2025

Table   Graphic     exposition period:

Congenital malformations
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
All congenital malformations (majors, minors, majors and minors, or unspecified)1.10 [0.97, 1.26]0%9 studies61,3913,716not evaluable ROB-
Major congenital malformations1.15 [0.98, 1.34]0%6 studies32,0832,509not evaluable ROB-
Congenital heart defects0.92 [0.63, 1.34]0%3 studies5,6531,907not evaluable ROB-
Cleft palate0.49 [0.10, 2.52]0%2 studies672575not evaluable ROB-
Limb defects0.98 [0.68, 1.40]0%2 studies4,9351,730not evaluable ROB-
Nervous system anomalies0.66 [0.34, 1.25]0%2 studies7601,730not evaluable ROB-
Respiratory system anomalies1.07 [0.32, 3.64]0%2 studies5711,730not evaluable ROB-
Club foot / Talipes equinovarus1.26 [0.68, 2.30]3%2 studies2,459184not evaluable ROB-
Ano-rectal atresia and stenosis3.35 [1.05, 10.66]-1 study160165not evaluable ROB6.16 [1.29; .]
Hydrocephaly3.48 [1.41, 8.57]-1 study278167not evaluable ROB6.42 [2.18; .]
Minor congenital malformations--0 study-
Polydactyly1.86 [1.03, 3.36]-1 study1,266174not evaluable ROB3.12 [1.21; .]
15 non statistically significant endpoints reported in only one study

Growth parameters and prematurity
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
Preterm (< 37 weeks)1.32 [0.86, 2.03]71%5 studies1,1951,398not evaluable ROB-
3 non statistically significant endpoints reported in only one study

Neonatal disorders
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
1 non statistically significant endpoints reported in only one study

Long term consequences
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
Leukemia1.39 [0.85, 2.27]0%2 studies44590not evaluable ROB-
3 non statistically significant endpoints reported in only one study

Intrauterine deaths
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
Early intrauterine death (< 22 weeks)1.47 [0.98, 2.21]42%2 studies8,762204not evaluable ROB-
Late intrauterine deaths (> 22 weeks)0.54 [0.18, 1.68]0%2 studies131,526not evaluable ROB-
Ectopic pregnancy--0 study-
Elective/induced termination of pregnancy3.41 [1.86, 6.25]-1 study45228not evaluable ROB6.27 [3.12; .]

Neuro-developmental disorders
Adverse outcome OR 95%CII2k No. casesNo. exposedpublication biasROBE-value
2 non statistically significant endpoints reported in only one study