1. Introduction
Nutritional status problems among school-age children have appeared as a significant global public health concern, affecting both developed and developing nations. Many countries are facing severe nutritional challenges, involving issues such as malnutrition, overweight, and obesity [
1]. The number of Asian children and adolescents aged 5-19 years who were reported to be overweight or obese exceeded three hundred million. In Southeast Asia, specifically, the prevalence of overweight and obesity has reached alarming rates, with figures as high as 30% [
2]. The findings of the second Southeast Asian Nutrition Surveys (SEANUTS II) among 13,933 children aged 6 months to 12 years across urban and rural schools in Thailand, Indonesia, Malaysia, and Vietnam from 2019 to 2021 revealed an increasing trend of overnutrition and malnutrition among children aged 7-12 years [
3,
4]. This trend is particularly concerning in Thailand. The country has set targets for the prevalence of undernutrition and overnutrition among children at less than 5% and 10%, respectively. However, recent data from 2020 to 2022 showed a gradual increase in the prevalence of overweight and obesity among Thai children, rising to 12.5% and 13.3%, respectively, surpassing the target of 10% [
5]. Moreover, there has been a significant rise in the number of children experiencing stunting, increasing from 6.0% in 2020 to 9.5% in 2022, also surpassing the target of 5%. On the contrary, the proportion of school-age children with normal height and weight has decreased from 64.3% to 57.2% during this period, falling below the target of 66% [
5]. These indicate that many countries worldwide, including Thailand, are experiencing increasing problems of overnutrition, obesity, and stunting among school-age children. These trends suggest that future health problems related to these abnormal nutritional statuses will likely increase.
Abnormal nutritional status in school-age children can lead to many health problems. Older school-age children (aged 9-12 years) who consume more food than their bodies need are at risk of developing metabolic syndrome [
6]. Excessive calorie intake is a leading cause of central obesity, as these excess calories are converted to sugar and fat, which accumulate in various parts of the body, particularly the abdomen. Excessive fats also are deposited in blood vessels leading to hypertension and cardiovascular diseases. Moreover, obese children are at risk of joint and bone-related diseases due to the increased pressure on their musculoskeletal system [
7,
8]. In contrast, malnourished older school-age children are prone to frequent illnesses and stunted growth, which can lead to impaired brain development. Consequently, older school-age children with malnutrition are more likely to experience lethargy, lack of concentration, and decreased learning ability [
9].
In Nakhon Si Thammarat Province, malnutrition in school-age children remains a significant issue. The percentage of children aged 6-14 years with an appropriate height-to-weight ratio decreased slightly from 56% in 2023 to 55% in 2024, which was below the Department of Health's target [
10]. In Thasala District specifically, the number of school-age children with normal nutritional status was also lower than the national standard, with only 54.9% of this target group having an appropriate height-to-weight ratio. In contrast, the number of school-age children with abnormal nutritional status surpassed the national target. The percentages of school-age children who were obese, stunted, and underweight reached 12.7%, 9%, and 5.9%, respectively [
10]. The main causes of abnormal nutritional status among school-age children in Thasala District arise from family and community factors. Thasala District is a semi-urban coastal area with a high population of Muslims [
11]. This area is characterized by residents who work in fishing and daily wage labor, often resulting in insufficient income and economic instability. Due to the nature of Muslim families, each family tends to have many children. Additionally, many families are broken, leading to children being raised by grandparents or relatives. These family and economic issues can significantly impact the nutritional status of school-age children. Previous studies have indicated that family size and the primary or formal caregiver are significant factors related to the nutritional status of school-age children [
12,
13]. The number of siblings was significantly related to nutritional status, with larger family sizes often leading to different nutritional outcomes [
12]. Moreover, children living with grandparents are more prone to being overweight or obese [
14].
The Muslim community has a unique food consumption culture, which is a primary factor affecting nutritional status. In Thasala District, food preferences among Muslims often include salty, sweet, and fatty foods due to the common use of coconut milk in cooking. Popular dishes in this area, such as sticky rice with fried chicken or fried beef, grilled chicken with coconut milk curry sauce, coconut milk curry rice, chicken biryani, massaman curry, roti, and sweet tea, are high in fat but low in fiber [
15]. Frequent consumption of these foods can increase the risk of overweight and obesity, leading to cardiovascular diseases [
7]. Additionally, most school-age children are prone to unhealthy dietary habits, such as choosing foods based on preference rather than nutritional value, skipping breakfast, eating at irregular times, and consuming unhealthy snacks. These eating behaviors result in excessive calorie intake and insufficient nutrient intake [
16]. Consequently, Muslim school-age children are at risk of developing both overnutrition and undernutrition, which can negatively affect their long-term health and nutritional status [
15].
Although there is some understanding of the cultural and religious factors influencing the dietary habits and nutritional intake of Muslim school-age children, little is known about how these factors specifically affect their nutritional status. Previous studies have primarily focused on the nutritional status of Muslim children under the age of 5 years, rather than the school-age group. For example, studies in Bangladesh and Nepal have revealed that Muslim children under 2 and 5 years old were frequently stunted and underweight, due to factors such as family size and economic status [
12,
17]. Only a few studies have been conducted on school-age children. The research conducted in Malaysia has found that a significant percentage of Malaysian children aged 5-12 years were affected by stunting and overweight/obesity. The main contributing factor to abnormal nutritional status in Malaysian children was income constraints. Children from low-income families tended to consume cheap meals that contained high carbohydrates and fat with low nutrient density, contributing to both obesity and stunting. Additionally, they lacked opportunities for physical activity and awareness of proper nutritional management [
18]. Previous studies on the nutritional status of Muslim school-age children in Thailand have been conducted in Narathiwat and Pattani [
15,
19]. However, these studies solely focused on the issue of underweight among Muslim school-age children. The research indicated that food consumption behavior and family factors were associated with the underweight status in this group of children. In Pattani, Muslim school-age children were prone to being underweight due to inappropriate eating behaviors, such as avoiding nutrient-rich proteins like meat, milk, and eggs in favor of snacks [
19]. These findings highlight the significant influence of family factors and unhealthy eating behaviors on children's nutritional status. However, despite the prevalence of abnormal nutritional status among Muslim school-age children in Thasala District, Nakhon Si Thammarat Province, surpassing the standard target set by the Ministry of Public Health, there remains a gap in research. This gap lies in the inadequate exploration of the relationships between family factors, dietary habits, and the nutritional status of this specific demographic. Addressing this gap is crucial for promoting appropriate nutritional status and developing targeted strategies to mitigate abnormal nutritional status in Muslim school-age children. Furthermore, it is essential to promote healthy eating behaviors among Muslim school-age children to ensure their growth into healthy and productive members of society, contributing to the nation's overall well-being.
This study aimed to explore the nutritional status of Muslim school-age children, and the relationships between family factors, food consumption behaviors, and the nutritional status of Muslim school-age children in Thasala District, Nakhon Si Thammarat Province, Thailand.
2. Materials and Methods
2.1. Study Design
The current study was a cross-sectional descriptive research project that utilized a secondary dataset from a previous study. The original study focused on anemia, knowledge, and food consumption behaviors in the prevention of anemia among primary school students in Thasala District, Nakhon Si Thammarat Province. By reanalyzing this existing dataset, the present research aimed to explore the relationships between family factors, food consumption behaviors, and the nutritional status of Muslim school-age children in the same district. The study's population consisted of 408 students in grades 4 to 6, aged 9 to 12 years, attending schools within Thasala District, Nakhon Si Thammarat Province.
2.2. Population and Sample Size
The study's population consisted of 408 students in grades 4 to 6, aged 9 to 12 years, attending schools within Thasala District, Nakhon Si Thammarat Province. Two out of ten sub-districts in Thasala District were randomly selected. Then, four schools within these selected sub-districts were also randomly chosen. According to the original research project, the established criteria for selecting the sample group included the ability to read and write Thai, along with obtaining consent from both the students and their parents or guardians to participate in the research study. The sample group was recruited using stratified random sampling. Since the data set for this population was already recorded in the statistical analysis program, 228 students who identified as Muslim were selected for further analysis.
2.3. Data Collection
This study utilized secondary data from the original research. It received an exemption from the Institutional Review Board and conducted the data analysis accordingly. The informed consent obtained from participants in the original study also covered this secondary analysis. The dataset included information on demographics, family details, nutritional status, and food consumption behaviors of participants. It did not contain any identifying information. The data collection process followed ethical guidelines to protect participant privacy and maintain data confidentiality and integrity.
2.4. Research Instruments
The first questionnaire was on demographics and family factors, which included gender, educational level, age, primary caregivers, and the number of siblings.
The second questionnaire was a nutritional status assessment developed by the Bureau of Nutrition, Department of Health, Ministry of Public Health. Participants’ nutritional status was assessed using weight-for-height, height-for-age, and weight-for-age ratios [
20].
The last questionnaire was an 18-item food consumption behaviors assessment developed by the Department of Health, Ministry of Public Health. The questionnaire used a Likert scale with three levels to assess participants’ food consumption behaviors. The questionnaire consisted of 11 positive statements and 7 negative statements. Responses to positive statements were scored on a scale from 1 point to 3 points. For negative statements, the scoring was reversed, with 1 point indicating 'Always' and 3 points indicating 'Never'. The total score ranged from 18 to 54 points [
21]. Overall food consumption behaviors were interpreted based on Bloom's (1971) taxonomy into two categories including healthy food consumption behavior (score ≥ 65%) and unhealthy food consumption behavior (score < 65%) [
22]. Meanwhile, Best and Kahn's criteria were used to classify each food consumption behavior item into three categories: required food consumption behavior modification (mean score range from 1.00 to 1.66), moderate-level food consumption behavior (mean score range from 1.67 to 2.33), and healthy food consumption behavior (mean score range from 2.34 to 3.00) [
23]. The food consumption behavior assessment questionnaire was tested for reliability with 30 students who had similar characteristics to the samples. The reliability coefficient, measured using Cronbach’s Alpha, was found to be 0.73.
2.5. Ethical Statement
The researchers conducted this study by the principles outlined in the Declaration of Helsinki. All procedures involving human participants adhered to the ethical standards of the relevant institutional board. Approval for this study was obtained from the Ethics Committee on Human Research at Walailak University on August 4, 2022 (WUEC-22-227-01), as mandated before data collection. Informed consent was obtained by the researchers from all individual participants and the parents and/or guardians before they were included in the study. The children aged 9-12 years and parents will provide written consent. Research information will be stored securely, with data coded for confidentiality.
2.6. Statistical Analysis
This study analyzed the statistics using SPSS software (Version 24) for Windows™ (IBM Corporation, New York, NY, USA). The statistics employed the following:
1. Descriptive statistics, including frequencies, percentages, means, and standard deviations (SD), were employed to analyze participants' demographic data, food consumption behavior, and nutritional status.
2. The relationships between demographic data, consumption behavior, and nutritional status were analyzed using chi-square and binary logistic regression statistics, determining statistical significance at 0.05.