Data sourcesPubMed, ISI, LILACS, Cochrane Library and Embase databases were searched.Study selectionEpidemiological studies (cross-sectional, case-control, cohort clinical trials) addressing possible associations between socioeconomic indicators (eg mother's schooling, household income, number of @entity1 , type of school) and @entity130 in the primary dentition were considered.Data extraction and synthesisTwo reviewers independently selected studies. with study quality being assessed using the Newcastle-Ottawa Scale (NOS). Data were extracted for categorical variables considered risk factors for TDI and recorded based on the distribution and frequency of TDI among @entity1 exposed to risk factors vs the frequency among @entity1 not exposed to risk factors. Meta-analysis was undertaken.ResultsSixteen studies (15 cross-sectional studies and one cohort study) were included. A wide range of socioeconomic indicators were investigated including; parents' schooling, parents' employment status, home ownership, having changed address in the previous year, income, family structure, number of residents in the home, number of @entity1 in the family, type of school and socioeconomic status. @entity1 from families with household income less than two times average salary (US  592) (OR: 0.77; 95% CI: 0.66-0.90) or more than three times the average salary (US  888) (OR: 0.76; 95% CI: 0.65-0.89) had a significantly lower chance of having TDI in the primary dentition. TDI was not associated with socioeconomic status (high vs low - OR: 0.77; 95% CI: 0.43-1.36; high vs medium - OR: 1.03; 95% CI: 0.72-1.48; medium vs low - OR: 0.70; 95% CI: 0.42-1.19), house ownership (owned vs rented - OR: 1.28; 95% CI: 0.98-1.66), mother's schooling (OR: 0.89; 95% CI: 0.74-1.08), or father's schooling (OR: 1.01; 95% CI: 0.62-2.74).ConclusionsThe scientific evidence demonstrates that socioeconomic indicators are not associated with TDI in the primary dentition. The evidence of an association between a low income and TDI is weak. In general, studies had low risk of bias. Further prospective cohort studies are needed to confirm this association.

Socioeconomic indicators and XXXX .

@entity1 :: ('9606', 'Species') :: ['Children', 'children'] @entity130 :: ('MESH:D014947', 'Disease') :: ['traumatic dental injury']
@entity130 :: (MESH:D014947,Disease) :: ['traumatic dental injury']
