Inequalities in public water supply fluoridation in Brazil: An ecological study
2008

Inequalities in Water Fluoridation in Brazil

Sample size: 246 publication Evidence: moderate

Author Information

Author(s): Gabardo Marilisa CL, da Silva Wander J, Olandoski Marcia, Moysés Simone T, Moysés Samuel J

Primary Institution: Pontifical Catholic University of Paraná

Hypothesis

This study aims to verify possible inequalities in the population's access to fluoridated drinking water in Brazilian municipalities.

Conclusion

The findings suggest that access to fluoridated water is inequitable, with socio-economically advantaged regions having better access.

Supporting Evidence

  • Municipalities with larger populations and better socio-economic indicators have more access to fluoridated water.
  • The study found that 45.9% of the municipalities had fluoridation, while 54.1% did not.
  • There is a significant relationship between the Human Development Index and access to mains water.

Takeaway

Some places in Brazil have more access to fluoridated water than others, and this can affect people's dental health.

Methodology

The study used a quantitative ecological design, analyzing data from a national epidemiological survey and employing statistical tests like Fisher's exact test and linear regression.

Limitations

The study is ecological, meaning it cannot infer individual-level conclusions from aggregated data.

Participant Demographics

The study included data from 246 municipalities across Brazil.

Statistical Information

P-Value

< 0.0001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1472-6831-8-9

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