Risk indicators for dental caries, and gingivitis among 6-11-year-old children in Nigeria: a household-based survey.

BACKGROUND: There is little is known about the factors associated with caries experience and gingivitis among 6-11-year-old children in Nigeria. The aim of the study was to determine the prevalence and preventive oral health behaviors associated with caries and gingivitis among 6-11-year-old children in Nigeria. METHODS: A cross-sectional questionnaire-based survey was conducted in Ile-Ife, Nigeria. The dependent variables were caries and gingivitis. The dmft/DMFT index was used to assess dental caries experience (present or absent) and caries severity. The gingival index was used to assess the prevalence (present or absent) and severity of gingivitis (healthy gingiva/mild gingivitis versus moderate/severe gingivitis). The independent variables were preventive oral health behaviors (frequency of daily tooth brushing, frequency of consumption of refined carbohydrates in-between-meals, use of fluoridated toothpaste, and use of dental floss, history of dental service utilization). A series of logistic regression analysis models were constructed to determine the associations between the dependent and independent variables after adjusting for confounders (age, sex, and socioeconomic status). RESULTS: There were 69 (5.2%) children with caries. The mean (standard deviation) dmft was 0.08 (0.457) and the mean DMFT was 0.02 (0.159). There were 839 (63.3%) children with gingivitis with a mean (SD) gingival index score of 0.503 (0.453). Children who seldom or never used fluoride toothpaste had significantly higher odds of developing moderate to severe gingivitis (AOR; 1.671; 95% CI: 1.003-2.786; p = 0.049). Children with middle socio-economic status had significantly lower odds of developing moderate to severe gingivitis (AOR: 0.573; 95%CI: 0.330-0.994; p = 0.048). There were no risk indicators identified for caries. CONCLUSION: The prevalence of dental caries was low while the prevalence of gingivitis was high in the study population. The daily used of fluoridated toothpaste seem to reduce the risk for moderate/severe gingivitis. Further studies are needed to understand these findings.

Validation of maternal report of early childhood caries status in Ile-Ife, Nigeria.

BACKGROUND: To determine the validity of maternal reports of the presence of early childhood caries (ECC), and to identify maternal variables that increase the accuracy of the reports. METHODS: This secondary data analysis included 1155 mother-child dyads, recruited through a multi-stage sampling household approach in Ile-Ife Nigeria. Survey data included maternal characteristics (age, monthly income, decision-making ability) and maternal perception about whether or not her child (age 6 months to 5 years old) had ECC. Presence of ECC was clinically determined using the dmft index. Maternally reported and clinically determined ECC presence were compared using a chi-squared test. McNemar's test was used to assess the similarity of maternal and clinical reports of ECC. Sensitivity, specificity, positive and negative predictive values, absolute bias, relative bias and inflation factor were calculated. Statistical significance was determined at p < 0.05. RESULTS: The clinically-determined ECC prevalence was 4.6% (95% Confidence interval [CI]: 3.5-5.0) while the maternal-reported ECC prevalence was 3.4% (CI 2.4-4.6). Maternal reports underestimated the prevalence of ECC by 26.1% in comparison to the clinical evaluation. The results indicate low sensitivity (9.43%; CI 3.13-20.70) but high specificity (96.9%; CI 95.7-97.9). The positive predictive value was 12.8% (CI 4.3-27.4) while the negative predictive value was 95.7% (CI 94.3-96.8). The inflation factor for maternally reported ECC was 1.4. Sensitivity (50.0%; CI 6.8-93.2) and positive predictive value were highest (33.3%; CI 4.3-77.7) when the child had a history of visiting the dental clinic. CONCLUSIONS: Mothers under-reported the presence of ECC in their children in this study population. The low sensitivity and positive predictive values of maternal report of ECC indicates that maternal reporting of presence of ECC may not be used as a valid tool to measure ECC in public health surveys. The high specificity and negative predictive values indicate that their report is a good measure of the absence of ECC in the study population. Child's history of dental service utilization may be a proxy measure of presence of ECC.

Association between maternal socioeconomic factors, decision-making status, and dental utilization by children with early childhood caries in sub-urban Nigeria.

AIM: To determine the association between maternal education, income, and decision-making status and the presence of early childhood caries (ECC) and dental-service utilization among young children. METHODS: This cross-sectional study was based on data from a household survey of 1,549 mother-preschool-aged-child dyads conducted in Ife Central Local Government Area, Nigeria. The explanatory variables were maternal education, income, and decision-making status (related to healthcare, large household purchases, and visits to family/relatives). Outcome variables were the presence of ECC and the child's history of dental-service utilization. Poisson regression analyses were conducted to identify factors associated with outcomes; the models were adjusted for maternal age, child's socioeconomic status, oral hygiene status, and frequency of sugar consumption. RESULTS: The study recruited 1,549 mother-child dyads, of which 66 (4.3 percent) children had ECC, and 90 (5.9 percent) children had a history of dental-service utilization. Fewer than half (42.3 percent) of the mothers earned between N18,001($49.00) and 60,000 ($168.00) per month. Also, 896 (57.8 percent) reported not making any independent decisions, 152 (9.8 percent) made one of three decisions independently, and 313 (20.2 percent) made two or three decisions independently. In the adjusted model, children of mothers with monthly income higher than N60,000 were more likely to have used dental services than were those whose mother's monthly income was less than or equal to N18,000 (adjusted prevalence ratio = 2.29; 95%CI: 1.30-4.02; P = 0.004). No other maternal factor was associated with ECC. CONCLUSIONS: Although maternal socioeconomic factors and decision-making abilities were not associated with ECC prevalence, more preschool children whose mothers had high income used dental services.

Governance, maternal well-being and early childhood caries in 3-5-year-old children.

BACKGROUND: This study assessed the direct, indirect and total effect of distal - political - risk indicators (affecting populations), and proximal risk indicators (affecting women) on the global prevalence of early childhood caries (ECC) in 3-5 year old children. METHODS: Data on global ECC prevalence were obtained from a prior study. Data for distal risk indicators (voice and accountability; political stability/absence of terrorism; control of corruption) were obtained from the World Bank Governance indicators, 2016. Data for proximal risk indicators (women's opportunity for leadership; percentage of female legislators, top officials and managers; basic employability status of women; ability of women to afford time off work to care for newborns; gross national income (GNI) per capita for females) were derived from the Human Development Index, 2016. Associations between variables were assessed with path analysis. RESULTS: Voice and accountability (ß = - 0.60) and GNI per capita for females (ß = - 0.33) were directly associated with a lower ECC prevalence. Political stability/absence of terrorism (ß =0.40) and higher percentage of female legislators, senior officials and managers (ß = 0.18) were directly associated with a higher ECC prevalence. Control of corruption (ß = - 0.23) was indirectly associated with a lower ECC prevalence. Voice and accountability (ß = 0.12) was indirectly associated with a higher ECC prevalence. Overall, voice and accountability (ß = - 0.49), political stability/absence of terrorism (ß = 0.34) and higher female GNI (ß = - 0.33) had the greatest effects on ECC prevalence. CONCLUSION: Distal risk indicators may have a stronger impact on ECC prevalence than do proximal risk indicators.. Approaches to control ECC may need to include political reforms.

Association between nutritional status and early childhood caries risk profile in a suburban Nigeria community.

BACKGROUND: Malnutrition is associated with oral health problems. AIM: To determine the association between malnutrition (undernourished and over-nourished) and early childhood caries (ECC) in a suburban population in Nigeria. DESIGN: Data were extracted from a database of a household survey of 1549 under 6-year-old children. Explanatory variables were nutritional status (normal, undernourished [wasted, stunted and underweight], or over-nourished). The outcome measure was the prevalence of ECC. Children's sociodemographic characteristics (socio-economic status, sex, age) and caries-risk variables (frequency of sugar consumption in-between-meals, oral hygiene status) were the confounders. Association between ECC and malnutrition was determined using the Poisson regression analysis. Statistical significance was set at P ≤ .05. RESULTS: About one-third (31.4%) of children had expected height/weight for age; 848 (54.7%) were undernourished; and 215 (13.9%) were over-nourished. Nutritional status was not significantly associated with the prevalence of ECC. Children who consumed sugar in-between-meals three or more times a day were twice as likely to have ECC as were those who consumed sugar less often in-between-meals (APR: 2.23; 95% CI: 1.30-3.81; P = .003). Children 3-5 years old were more likely to have ECC than were those 0-2 years old (APR: 2.40; 95% CI: 1.10-5.22; P = .03). CONCLUSIONS: ECC was not associated with undernourished and over-nourished in a suburban population in Nigeria.

Challenges with study procedure fidelity when conducting household survey: reports from the field.

OBJECTIVES: The aim of the study was to identify reasons for protocol deviations during conduct of large epidemiological surveys despite training of field workers, validating clinicians, and providing field supervisory support. Enquiries focused on breaches of recruitment procedures, privacy, confidentiality, and informed consent. The case study was a household survey conducted in Ile-Ife, Nigeria. RESULTS: The study reveals that despite training of field workers, providing supervisory support, and conducting validation exercises, protocol deviation still occurred. Measures to improve internal research validity during the conduct of surveys can minimise but not eliminate protocol deviations. Individual and environmental factors increase the risk for protocol deviation. Individual factors include personal bias against adherence to elements of the protocols, and pressure to meet personal recruitment targets to maximise remuneration. These pressures increase the risk of breaching study participants' recruitment process. Environmental pressures resulted from low research literacy that made it possible for field workers not to consent participants and for participants not to prioritise privacy. The use of electronic data collection enhanced data security. A key recommendation from the study was that improved field supervision will reduce the risk for protocol violation.