Non-Cochrane · aetiology · PM38997699

Maternal smoking during pregnancy and early childhood dental caries in children: a systematic review and meta-analysis.

Samani Dorsa, Ziaei SeyedMehdi, Musaie Farhan, et al. · BMC oral health · 2024 · PubMed · doi:10.1186/s12903-024-04548-4

Oral HealthDental cariesAMSTAR 2: not applicable
Full textEvery question was extracted from the full text, figures and supplements by two independent LLM extractors, disagreements adjudicated. Rows cite where in the review the value comes from.
Questions
17
current version
GRADE rated
0
No studies
0
Included studies
12
linked below
No studies 0 · 0%Ungraded 17 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Review question

ElementPlanned (methods)Found (results)
PopulationPregnant women and their children (exposure assessed in pregnancy; caries outcome in children)Children, 90,405 participants across 12 studies (published 2007-2023; England, Japan, Australia, Poland, USA, Sweden, Italy, Singapore)
InterventionMaternal smoking during pregnancyMaternal smoking during pregnancy
ComparisonNo maternal smoking during pregnancyNo maternal smoking during pregnancy
OutcomesDental caries in childrenDental caries in children (n=12 studies)
Study designsObservational studies (all observational studies eligible; excluded reviews, letters, abstracts, in vivo studies, non-English)7 cohort and 5 cross-sectional studies (n=12)
TimingNot specifiedStudies published 2007-2023; children's ages <3 to 7 years

Search date: 15 November 2023. Databases: PubMed, Scopus, Google Scholar; manual search of reference lists

Questions and results

Maternal smoking during pregnancy vs No maternal smoking during pregnancy

Population: Children of mothers assessed for smoking status during pregnancy (early childhood dental caries)
16 questions
OutcomeEffectEvidenceStatus / GRADE
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Dental examination: Clinical and radiographic examinations
In the study using clinical and radiographic examinations, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 2.21, 95% CI 2.09 to 2.34).
Source: Table 3 (Dental examination: Clinical and radiographic examinations) · same question in other reviews
OR 2.21 [2.09, 2.34]1 studyUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Study region: Europe
In European studies, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.67, 95% CI 1.40 to 1.99).
Source: Table 3 (Study region: Europe) · same question in other reviews
OR 1.67 [1.40, 1.99]4 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Sample size: <=1000
In studies with sample size <=1000, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.63, 95% CI 1.11 to 2.40).
Source: Table 3 (Sample size: <=1000) · same question in other reviews
OR 1.63 [1.11, 2.40]3 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Overall (all 12 studies pooled)
Maternal smoking during pregnancy is associated with increased odds of dental caries in children (pooled OR 1.78, 95% CI 1.55 to 2.05); ungraded, high heterogeneity (I2=68.53%) and publication bias present.
Source: Fig. 2 (forest plot, overall diamond); Table 3 (Overall row); Abstract; Results 'Meta-analysis and publication bias' · same question in other reviews
OR 1.774 [1.554, 2.026]12 studies · 90405 participantsUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Sample size: >3000
In studies with sample size >3000, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 2.18, 95% CI 2.07 to 2.31).
Source: Table 3 (Sample size: >3000) · same question in other reviews
OR 2.18 [2.07, 2.31]2 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Study region: Asia
In Asian studies, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.71, 95% CI 1.40 to 2.10).
Source: Table 3 (Study region: Asia) · same question in other reviews
OR 1.71 [1.40, 2.10]5 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Children's age: <=3 years
In children aged <=3 years, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.70, 95% CI 1.50 to 1.91).
Source: Table 3 (Children's age: <=3 years) · same question in other reviews
OR 1.70 [1.50, 1.91]7 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Sample size: >1000 and ≤3000
In studies with sample size 1000 to 3000, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.70, 95% CI 1.48 to 1.88).
Source: Table 3 (Sample size: 1000-3000) · same question in other reviews
OR 1.70 [1.48, 1.88]7 studiesUngraded
Dental caries
Overall
Population: Children
Maternal smoking during pregnancy was associated with higher odds of dental caries in children (OR 1.78, 95% CI 1.55 to 2.05; ungraded).
Source: Fig. 2; Table 3 · same question in other reviews
OR 1.78 [1.55, 2.05]12 studies · 90405 participantsUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Dental examination: Visual/tactile examination
In studies using visual/tactile examination, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.48, 95% CI 1.26 to 1.74).
Source: Table 3 (Dental examination: Visual/tactile examination) · same question in other reviews
OR 1.48 [1.26, 1.74]4 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Study region: USA
In the USA study, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.85, 95% CI 1.38 to 2.49).
Source: Table 3 (Study region: USA) · same question in other reviews
OR 1.85 [1.38, 2.49]1 studyUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Children's age: >3 years
In children aged >3 years, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.83, 95% CI 1.53 to 2.18).
Source: Table 3 (Children's age: >3 years) · same question in other reviews
OR 1.83 [1.53, 2.18]5 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Study region: Australia
In the Australian study, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.68, 95% CI 1.35 to 2.10).
Source: Table 3 (Study region: Australia) · same question in other reviews
OR 1.68 [1.35, 2.10]1 studyUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Dental examination: Clinical oral examinations
In studies using clinical oral examinations, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.82, 95% CI 1.47 to 2.26).
Source: Table 3 (Dental examination: Clinical oral examinations) · same question in other reviews
OR 1.82 [1.47, 2.26]2 studiesUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Dental examination: Parent-reported dental caries
In the study using parent-reported caries, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.68, 95% CI 1.35 to 2.10).
Source: Table 3 (Dental examination: Parent-reported dental caries) · same question in other reviews
OR 1.68 [1.35, 2.10]1 studyUngraded
Dental caries in children
Exposure during pregnancy; caries assessed in early childhood · Dental examination: Visual examination
In studies using visual examination, maternal smoking during pregnancy was associated with increased odds of childhood dental caries (OR 1.85, 95% CI 1.59 to 2.16).
Source: Table 3 (Dental examination: Visual examination) · same question in other reviews
OR 1.85 [1.59, 2.16]4 studiesUngraded

Maternal smoking during pregnancy vs No maternal smoking during pregnancy

Population: Children
1 question
OutcomeEffectEvidenceStatus / GRADE
Dental caries
Study region: Australia
Among studies from Australia, maternal smoking during pregnancy was associated with higher odds of dental caries (OR 1.68, 95% CI 1.35 to 2.10; ungraded).
OR 1.68 [1.35, 2.10]1 studyUngraded

Included primary studies 12

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Majorana 2014
Feeding and smoking habits as cumulative risk factors for early childhood caries in toddlers, after adjustment for several behavioral…
PMID:24528500
4 other reviewsDental caries in childrennot extracted yetnot extracted yet
Akinkugbe 2021
Does the Trimester of Smoking Matter in the Association between Prenatal Smoking and the Risk of Early Childhood Caries?
PMID:33508853
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Hanioka 2008
Dental caries in 3-year-old children and smoking status of parents.
PMID:19000292
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Julihn 2018
Socioeconomic Determinants, Maternal Health, and Caries in Young Children.
PMID:30263967
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Kalhan 2020
Caries Risk Prediction Models in a Medical Health Care Setting.
PMID:32311276
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Nakayama 2022
Risk Factors for Early Childhood Caries in Three-Year-Old Japanese Children: A Prospective Cohort Study.
PMID:36309780
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Tanaka 2009
The effect of maternal smoking during pregnancy and postnatal household smoking on dental caries in young children.
PMID:19555966
1 other reviewDental caries in childrennot extracted yetnot extracted yet
Borowska-Struginska 2016
Prenatal and familial factors of caries in first permanent molars in schoolchildren living in urban area of Łódź, Poland.
PMID:26749439
this review onlyDental caries in childrennot extracted yetnot extracted yet
Claudia 2016
The relationship between maternal smoking during pregnancy and parental-reported experience of dental caries in Indigenous Australian…
PMID:28537368
this review onlyDental caries in childrennot extracted yetnot extracted yet
Iida 2007
Association between infant breastfeeding and early childhood caries in the United States.
PMID:17908749
this review onlyDental caries in childrennot extracted yetnot extracted yet
Sobiech 2023
The association of maternal smoking and other sociobehavioral factors with dental caries in toddlers: A cross-sectional study.
PMID:37077335
this review onlyDental caries in childrennot extracted yetnot extracted yet
Tanaka 2015
Association of prenatal exposure to maternal smoking and postnatal exposure to household smoking with dental caries in 3-year-old Japanese…
PMID:26492399
this review onlyDental caries in childrennot extracted yetnot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match).