Family socioeconomic status and nutrition habits of 7-8 year old children: cross-sectional Lithuanian COSI study.

BACKGROUND
Nutritional habits are a useful way to characterize whole diets and they are also known to be influenced by a wide range of social and economic factors. The above factors in each country may have different effect on children's eating habits. In Lithuania the data of children nutrition in association with socio-economic status of family is poor. There are few studies done, where links between nutrition habits of children and socio-economic status of family was evaluated. The aim of this paper is to evaluate association among nutrition habits of first-formers and family socio-economic status in Lithuania.

METHODS
Data were obtained participating in the international study, which was performed in all ten districts of Lithuania. A cross-sectional study was carried out in 2010, using the protocol and methodology prepared by the experts from the WHO and countries participating in the Initiative. The data were collected by means of COSI standardized questionnaire, which was filled out by parents of selected first-formers'. In this paper a part of questions regarding children nutrition habits and parents' socio-economic status is presented. Statistical analysis was performed by using SPSS 20.0 software for Windows. Correlation among variables was evaluated by χ (2). Links among nutrition habits of first-formers and family socioeconomic status were determined using binary logistic regression to calculate odds ratios (OR) and 95% confidence intervals (CI). For all tests p < 0.05 was considered significant.

RESULTS
It was established that the majority (76%) of Lithuanian first-formers eat breakfast every day or 4-6 times a week. Significant differences were found between breakfast consumption and gender – girls eat breakfast less frequently than boys. Odds ratio of children daily breakfast consumption were 1.3 times higher in families where fathers' were older than 30 years comparing with younger fathers. Meanwhile mothers' age had significant influence just on children daily soft drinks with sugar consumption.

CONCLUSIONS
Results from the national survey of primary school age children of Lithuania reveals that family socio-economic position plays one of the major role in breakfast, fresh fruit and soft drinks with sugar consumption among younger school age children.