Findings

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Evidence found and GRADE certainty

25 questions · 30 findings · 2 reviews · Oral medicine and oral cancer · All outcomes

No studies found 5 · 16.7%GRADE not reported 24 · 80%Very low 0 · 0%Low 1 · 3.3%Moderate 0 · 0%High 0 · 0%

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R43 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R43 was significantly associated with ECC in the TWAS (p = 8.78e-8); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of SMIM10L1 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of SMIM10L1 was significantly associated with ECC in the TWAS (p = 1.70e-7); genetic association, ungraded.

1 finding from 1 review

Common genetic variants genome-wide (GWAS; ~3.9 million SNPs with MAF > 5%) vs ECC-unaffected children (per-allele case-control association)

Early childhood caries (ECC) - association at lead SNP rs76823412 (8:134690570; nearest gene(s) ST3GAL1) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

The common variant rs8091366 near CHST9, KCTD1 showed suggestive (not genome-wide significant) association with ECC (Z = 4.476, p = 7.60e-6); genetic association, ungraded.

2 findings from 1 review

Common genetic variants genome-wide (GWAS; ~3.9 million SNPs with MAF > 5%) vs ECC-unaffected children (per-allele case-control association)

Early childhood caries (ECC) - association at lead SNP rs563135 (10:115067899; nearest gene(s) TCF7L2, CASP7) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

The common variant rs563135 near TCF7L2, CASP7 showed suggestive (not genome-wide significant) association with ECC (Z = -4.532, p = 5.86e-6); genetic association, ungraded.

1 finding from 1 review

Common genetic variants genome-wide (GWAS; ~3.9 million SNPs with MAF > 5%) vs ECC-unaffected children (per-allele case-control association)

Early childhood caries (ECC) - association at lead SNP rs1044956 (7:24854765; nearest gene(s) OSBPL3, NPVF) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

The common variant rs1044956 near OSBPL3, NPVF showed suggestive (not genome-wide significant) association with ECC (Z = 4.551, p = 5.35e-6); genetic association, ungraded.

2 findings from 1 review

Common genetic variants genome-wide (GWAS; ~3.9 million SNPs with MAF > 5%) vs ECC-unaffected children (per-allele case-control association)

Early childhood caries (ECC) - association at lead SNP rs7325099 (13:28104496; nearest gene(s) LNX2, POLR1D, RPL21) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

The common variant rs7325099 near LNX2, POLR1D, RPL21 showed suggestive (not genome-wide significant) association with ECC (Z = 4.485, p = 7.28e-6); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of LACC1 (chr13q14.11) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted LACC1 expression reached the TWAS threshold for ECC (p = 3.98e-5) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of NRAD1 (LINC00284) (chr13q14.11) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted NRAD1 (LINC00284) expression reached the TWAS threshold for ECC (p = 1.69e-6) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R31 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R31 was suggestively associated with ECC in the TWAS (p = 1.04e-5); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of TAS2R14 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of TAS2R14 was significantly associated with ECC in the TWAS (p = 1.06e-6); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of IGSF5 (chr21q22.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted IGSF5 expression reached the TWAS threshold for ECC (p = 7.22e-5) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of LINC02905 (C8orf49) (chr8p23.1) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted LINC02905 (C8orf49) expression reached the TWAS threshold for ECC (p = 1.82e-8) but was flagged as a possible false positive (LD misspecification) and not further considered; ungraded.

1 finding from 1 review

Common genetic variants genome-wide (GWAS; ~3.9 million SNPs with MAF > 5%) vs ECC-unaffected children (per-allele case-control association)

Early childhood caries (ECC) - association at lead SNP rs74470773 (3:33958083; nearest gene(s) PDCD6IP) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

The common variant rs74470773 near PDCD6IP showed suggestive (not genome-wide significant) association with ECC (Z = -4.589, p = 4.46e-6); genetic association, ungraded.

1 finding from 1 review

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of CDH17 (chr8q22.1) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of CDH17 was significantly associated with ECC in the TWAS (p = 3.32e-8); genetic association, ungraded.

1 finding from 1 review

Visual screening (oral visual inspection) by trained health workers vs No screening

Stage at diagnosis (early-stage detection) · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…

Visual screening (oral visual inspection) by trained health workers led to lower stage at diagnosis (early-stage detection) compared with no screening; GRADE not reported.

2 findings from 1 review

Visual screening (oral visual inspection) by trained health workers vs No screening

Oral cancer mortality (disease-specific) · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…

Visual screening (oral visual inspection) by trained health workers showed no clear difference in oral cancer mortality (disease-specific) compared with no screening (low certainty).

2 findings from 1 review

Visual screening (oral visual inspection) by trained health workers vs No screening

Costs · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…
1 finding from 1 review
  • Screening programmes for the early detection and prevention of oral cancer 2013 · Cochrane All outcomes
    9 years (three cycles)
    The costs associated with the screening programme were reported after three cycles (nine years) (Subramanian 2009) (Additional Table 8). The benefit produced by a screen was 269.31 life-years saved per 100,000 for all…
    1 study
    GRADE not reported

Visual screening (oral visual inspection) by trained health workers vs No screening

Harms of screening (false-positive/false-negative outcomes) · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…

The review found no eligible studies for this question.

1 finding from 1 review

Visual screening (oral visual inspection) by trained health workers vs No screening

Oral cancer incidence · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…

Visual screening (oral visual inspection) by trained health workers showed no clear difference in oral cancer incidence compared with no screening; GRADE not reported.

2 findings from 1 review

Visual screening (oral visual inspection) by trained health workers vs No screening

Quality of life · Apparently healthy adults aged 35 years or older (general population), living in 13 clusters in rural areas of Trivandrum city, Kerala,…

The review found no eligible studies for this question.

1 finding from 1 review