Sociocultural determinants of children's oral health among immigrants in Canada.

OBJECTIVE

A conceptual model was designed and tested to predict immigrant children's oral health in Canada by examining parental acculturation and perceived social support (PSS) using structural equation modelling.

METHODS

A convenience sample of first-generation immigrant parents and their children aged 2-12 years were recruited by multilingual community workers in Edmonton, Canada. Parents completed a validated questionnaire on demographics, child's oral health (OH) behaviours, parental acculturation and PSS. Dental examinations determined children's dental caries rate using DMFT/dmft index. Structural equation modelling (SEM) was used to analyse the data.

RESULTS

A total of 336 families participated in this study. The average parental acculturation level was 10.46 with a maximum of 15, and the average PSS was 63.27 with a maximum of 75. SEM showed that 77% of the variance of DMFT/dmft scores in children was explained by parental PSS, acculturation level, immigration-related variables, socioeconomic variables and children's OH behaviours. The direct effect of parental PSS was associated with a significantly reduced rate of dental caries (β = -.076, p-value = .008) and lower sugar consumption (β = -.17, p-value = .04). While the mediation effect of parental acculturation on PSS was associated with positive OH behaviours of children (e.g., toothbrushing frequency and dental care utilization), the indirect effect was negatively associated with caries rate (β = .77, p-value = .00).

CONCLUSIONS

The direct effect of Parental Perceived Stress Scale (PSS) was associated with more favourable oral health behaviours and a lower prevalence of dental caries, while the mediation effect of acculturation was linked to a higher prevalence of dental caries.