What do systematic reviews say?

Populations with a lower proportion of university-educated people (<33.78% with university level) vs Populations with a higher proportion of university-educated people (>=33.78% with university level)

The proportion of university-educated people was not associated with caries experience (DMFT); pooled DMFT was similar across subgroups and the meta-regression was non-significant; ungraded observational evidence.

• Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review and… 2018 All outcomes

  Population/community-based studies of adults aged 19-60 years across multiple countries (studies published 1975-2016) · High university (>=33.78%)
  MEAN 10.91 [7.95, 13.87]
  9 studies
  GRADE not reported
• Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review and… 2018 All outcomes

  Population/community-based studies of adults aged 19-60 years across multiple countries (studies published 1975-2016) · Low university (<33.78%)
  MEAN 10.62 [7.30, 13.93]
  9 studies
  GRADE not reported
• Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review and… 2018 All outcomes

  Population/community-based studies of adults aged 19-60 years across multiple countries (studies published 1975-2016) · Adjusted (Model 1)
  Meta-regression coefficient -4.132903
  Studies not reported
  GRADE not reported