What do systematic reviews say?

4 questions · 31 findings · 4 reviews · Oral Health

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No studies found 0 · 0%GRADE not reported 31 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Dental caries prevalence · Primary school children in Ethiopia

Among studies using systematic random sampling, the pooled prevalence of dental caries was 35% (ungraded; CI not reported).

4 findings from 1 review

Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomes
Schools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: systematic random sampling
Prevalence 30 [15, 44]
2 studies · 554 participants
GRADE not reported
Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomes
Schools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: multi-stage random sampling
Prevalence 21 [19, 23]
1 study · 1736 participants
GRADE not reported
Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomes
Schools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: simple random sampling
Prevalence 42 [35, 49]
4 studies · 1421 participants
GRADE not reported

Show 1 more finding

Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomes
Schools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Overall (all included studies)
Prevalence 35 [27, 43]
7 studies · 3711 participants
GRADE not reported

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Dental caries prevalence · Children (<18 years) with intellectual and developmental disabilities (IDD) in India

Dental caries affects about 64% of children with IDD in India (pooled prevalence 0.64, 95% CI 0.45-0.79; high heterogeneity; ungraded).

1 finding from 1 review

Oral health status of children with intellectual and developmental disabilities in India: a systematic review and… 2024 All outcomes
India (Karnataka, Tamil Nadu, Rajasthan, Maharashtra, Madhya Pradesh, Telangana); schools/institutions and community · Overall
Prevalence 64 [45, 79]
7 studies · 1066 participants
GRADE not reported

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Early childhood caries (ECC) · Children aged 0-5 years in North Africa

Pooled ECC prevalence in Tunisia was 38% (95% CI 24-51), significantly lower than Egypt and Sudan.

10 findings from 1 review

Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
Tunisia · Country: Tunisia
Prevalence 38 [24, 51]
4 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Sample size <500
Prevalence 48 [39, 58]
9 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
Sudan · Country: Sudan
Prevalence 63 [52, 74]
3 studies
GRADE not reported

Show 7 more findings

Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Sample size >500
Prevalence 65 [55, 75]
9 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Publication-bias adjusted (trim-and-fill)
Prevalence 62 [58, 81]
Studies not reported
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
Egypt · Country: Egypt
Prevalence 62 [53, 70]
10 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa (Egypt, Tunisia, Sudan, Morocco); community, school, and hospital-based · Overall (all included studies)
Prevalence 57 [50, 64]
18 studies · 11319 participants
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Sampling: convenience
Prevalence 60
4 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Sampling: stratified/multistage cluster
Prevalence 50 [40, 61]
9 studies
GRADE not reported
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. 2025 All outcomes
North Africa · Sampling: simple random
Prevalence 67
5 studies
GRADE not reported

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Early childhood caries (ECC) · Children younger than 71 months (under 6 years)

Pooled ECC prevalence in Europe was 36% (95% CI 25-47).

16 findings from 1 review

A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Europe · Region: Europe
Prevalence 36 [25, 47]
13 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Countries with 71-75 years life expectancy · Life expectancy: 71-75 years
Prevalence 62
Studies not reported
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
GNI >$40000 · GNI >$40000
Prevalence 47 [32, 62]
14 studies
GRADE not reported

Show 13 more findings

A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Countries with no income inequality (Gini) · Gini index: no inequality
Prevalence 62
Studies not reported
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Africa · Region: Africa
Prevalence 42 [32, 53]
3 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Asia-Oceania · Region: Asia-Oceania
Prevalence 52 [45, 60]
33 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
49 countries worldwide; urban and rural communities · Overall (all regions)
Prevalence 49 [44, 55]
67 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
GNI $10000-$19999 · GNI $10000-$19999
Prevalence 55 [42, 68]
9 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Countries with low income inequality (Gini) · Gini index: low inequality
Prevalence 39
Studies not reported
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Countries with highest life expectancy · Life expectancy: highest (>80 years)
Prevalence 28
Studies not reported
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
GNI $5000-$9999 · GNI $5000-$9999
Prevalence 53 [41, 65]
14 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Middle East · Region: Middle East
Prevalence 72 [58, 85]
7 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
North America · Region: North America
Prevalence 57 [36, 77]
5 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
Central/South America · Region: Central/South America
Prevalence 34 [20, 48]
6 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
GNI $20000-$39999 · GNI $20000-$39999
Prevalence 30 [22, 38]
11 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes
GNI <$5000 · GNI <$5000
Prevalence 57 [47, 67]
19 studies
GRADE not reported