Oral health and academic performance or absenteeism: Findings from a University in Southern Brazil.

Objectives: To evaluate the association between oral health conditions and academic performance and absenteeism in university students.
Methods: This cross-sectional study was carried out on a comprehensive sample of 1865 freshman students from the Federal University of Pelotas/Southern Brazil in 2017. A self-administered questionnaire was applied in the classroom, inquiring about socioeconomic, demographic, psychological, academic characteristics and oral conditions (tooth loss, self-reported oral health and toothache). For the dependent variables, academic performance was evaluated by the question: 'How would you describe your academic performance?' while absenteeism was assessed with the question 'In the last six months, have you missed some class for dental reasons?'. Multivariable analyses used hierarchical Poisson regression with backward selection.
Results: The prevalence of low academic performance was 38.6% and absenteeism due to dental reasons 6.2%. The prevalence of toothache and poor self-perceived oral health was 28% and 20%, respectively. Multivariable analysis found low academic performance to be more prevalent in students with poor self-perceived oral health (PR 1.46; 95% CI 1.22-1.77), and absenteeism to be almost six times more prevalent (PR 5.85; 95% CI 3.84-8.90) in students reporting toothache.
Conclusions: Poor oral health is associated with both poor academic performance and absenteeism in university students.
(© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)