Statistical-mathematical analysis of childhood caries in children between the ages of one and thirteen years as a function of diet and oral hygiene

Objective. Determine was statistical mathematically the percentage (%) of prevalence of childhood caries in children between the ages of one and thirteen years as a function of diet and oral hygiene wearing the Empirical Modeling Theory of Bronstein & Semendiaev. Design. Correlational, predictive and transversal study. Participants. Patients from one year to thirteen years old were considered and distributed in four groups from one to four years old; from five to seven years old, from eight to ten years old and from eleven to thirteen years old; respectively. Twelve children have been considered in each group and we have worked with the average percentage of prevalence of each group; in which each average percentage of prevalence was contrasted with age during eight consecutive years. Main measurement. Each dispersogram showed that the first and third groups have similar behavior (sigmoidal or logistic) and groups two and four showed different behavior to groups one and three, but similar behavior between them (quadratic). Results. The statistical-mathematical analysis for groups one and three turned out tobe good, with coefficients of determination of r2=0,9752 and r2=0,9347respectively, and the relationship between time t(years) and the percentage (%) of prevalence of childhood caries (P), for children between 1 and 4 years old and 8 to 10 years old is real, there is a non-significant difference, the predictive models have high estimation, there is a "very strong correlation" between the elapsed time (t) and the percentage (%) of prevalence of childhood caries (P).Conclusions. The statistical-mathematical analysis for groups two and four proved to be good, with coefficients of determination of r2=0,9595 and r2=0,8562. respectively, and the relationship between time, t(years) and the percentage (%) of prevalence of childhood caries (P), for children between five and seven years and eleven to thirteen years, is real, there is a non-significant difference, the predictive models have high estimation, there is a "very strong correlation" between the elapsed time (t) and the percentage (%) prevalence of childhood caries (P).