To evaluate the influence of clinical variables, individual and contextual characteristics on the quality of life (QL) of underprivileged adolescents in a municipality in the interior of the State of São Paulo, Brazil.
An analytical cross-sectional study was conducted in Piracicaba, in 2012, with 1,172 adolescents aged 15–19 years, from 21 state schools and 34 Family Health Units. The dependent variables included the socio-dental impact (OIDP) and quality of life (WHOQOL-bref) indices. The dependent variables were classified as individual (DMFT index, CPI Index, age, sex, income, parents’ educational level) and contextual (Social Exclusion Index) variable. The multilevel regression model was estimated by the PROC GLIMMIX (“Generalized Linear Models-Mixed”) procedure, considering the individuals’ variables as being Level 1 and the contextual variables as being Level 2, and the statistical significance was evaluated at level of significance of 5 %.
Girls were found to have the worst QL (p < 0.000) and greatest OIDP (p = 0.000). There was an increase in OIDP (p < 0.001) and diminished QL (p < 0.052) with an increase in the periodontal index. This result is marginally significant since the significance probability is marginally greater than 0.05. In turn, there was an increase in QL (p = 0.000) and reduction in OIDP (p < 0.000) with an increase in the family income. Adolescents who resided in areas of greatest social exclusion (p = 0.031) and with greater OIDP (p < 0.000) presented the worst QL.
Individual and contextual variables were related to the OIDP and QL in underprivileged Brazilian adolescents.
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The authors thank the volunteers, the school principals and PHC units, for allowing the research carried out. This research was supported by FAPESP—São Paulo Research Foundation (Grants #2011/03657-5 and #2011/01768-4).
The study was approved by the Research Ethics Committee of the Piracicaba Dental School, University of Campinas (UNICAMP) (protocol number #027/2011) in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Consent was obtained from the parents before starting the study.
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Vazquez, F.L., Cortellazzi, K.L., Kaieda, A.K. et al. Quality of life and socio-dental impact among underprivileged Brazilian adolescents. Qual Life Res 24, 661–669 (2015). https://doi.org/10.1007/s11136-014-0795-4
- Oral health
- Quality of life
- Multilevel analysis