Academic Achievement, School Absence and Self-Concept in Czech Prepubescent Children with Overweight and Obesity

Problem. The paper offers findings about selected educational aspects of children’s academic performance, examined here in terms of sociodemographic variables, BMI percentile values, cognitive test scores, weight bias internalization scale and self­ ­concept scale with an aim to detect whether and to what extent these factors contribute to children’s school results. Methods. 557 fifth graders were administered Vana’s Intelligence Test, the Piers‑Harris 2 self­‑concept questionnaire and other tools. Children’s educational aspects were assessed in terms of school Absence, Grade Point Average, and Czech and Mathematics grades, with data obtained from their most recent report cards under the Informed consent of their legal representatives and in compliance with ethical standards. Results. Prepubescent children from stronger socio­‑economic backgrounds suffer from overweight/obesity less often and perform slightly better at school. The present results suggest a link between weight bias internalization and overweight/obesity, and a somewhat weaker link between self­‑concept and overweight/obesity in the non­‑clinical population of prepubescent children. In these relationships of overweight/obese children, as in the cases of alarmingly high school absence, gender is an important variable. Multinomial logistic regression modelling the relationship between Czech and Mathematics grades and selected factors discovered that chances for a worse grade were significantly reduced by the results of Vana’s Intelligence Test in both the subjects, while the Self‑concept total score proved to be an insignificant factor. Conversely, pupils’ Czech grades were negatively influenced by increased BMI (quartile), higher Absence rate, male Gender, Presence of only one parent in the family and WBI, while in Mathematics, in addition to the above­ ­discussed, significant regressors only included Absence and Presence of only one parent. Discussions. The results of the Self‑concept total score, the level of which is generally lower in girls than in boys in the population of Czech prepubescent children, agree with other authors’ experience. The connection between the male sex and poorer performance in Czech can be partly explained by the fact that the development of speech, reading, writing and grammar is generally less complicated for school­‑age girls than boys. We can ask why a higher BMI quartile increases the chances of a worse grade only in the case of Czech language? So far, we can