Dental caries status and related factors among 12-year-old Somali school children in Hargeisa

There is little data on the oral health conditions of Somali children. The aim was to assess the dental caries status and related risk factors of 12-aged children in primary schools in Hargeisa, Somaliland.

A school-based survey was conducted in Hargeisa in December 2022. Using 2-stage cluster sampling, 405 children (12-aged) were randomly selected from 16 primary schools. Data collection involved WHO structured interviewer-administered questionnaire and clinical examinations. The DMFT index was measured according to WHO criteria, and accordingly, the mean for the significant caries index (SiC) was calculated. The association between the DMFT and the relevant variables was analysed using negative binomial regression in STATA.

The overall prevalence of dental caries was found to be 62.7%, with a mean DMFT of 1.7 and a SiC score of 3.7. Non-public school pupils showed significantly higher prevalence of dental caries and mean DMFT compared to public school counterparts (68.5% vs. 58.6%) and (1.91 vs. 1.48), respectively. Merely 14.7% of the participants utilized dental care services in the previous year. The multivariable analysis showed a significant positive association of the DMFT outcome with attending a non-public school (95% CI 1.16-2.12) and having many previous dental visits (95% CI 1.22-2.83). In the adjusted model, fathers of low education had children with better dental caries status (lower mean DMFT) than their well-educated counterparts. The mean DMFT was not significantly influenced by the factors sex, location, educational attainment (school class of the participants) and frequency of teeth cleaning.

Although the overall mean DMFT of school children in Hargeisa could be regarded low, the high levels of untreated caries especially in the one-third most affected are a cause for concern. Children enrolled in non-public schools formed the high-risk group. Preventive oral public health programs targeting Somali school children are recommended.