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A Study on Dietary Behaviors and Nutritional Knowledge Related Sodium Intake of High School Students in Incheon

인천지역 고등학생의 나트륨 섭취 관련 식행동 및 영양지식 평가

Kim, Ji-Hye;Kim, Myung-Hee;Choi, Mi-Kyeong;Kim, Mi-Hyun
김지혜;김명희;최미경;김미현

  • Received : 2018.12.20
  • Accepted : 2019.04.09
  • Published : 2019.06.30

Abstract

The purpose of this study was to investigate dietary behavior and nutritional knowledge related to sodium intake in high school students. A questionnaire survey was conducted in 400 high school students (200 boys) in Incheon, Korea. Survey data were analyzed according to gender and degree of obesity. The distribution of the degree of obesity was the highest in 231 normal weight individuals (57.8%), followed by 89 underweight (22.3%), 41 overweight (10.3%), and 39 obese (9.8%). The sodium-related undesirable dietary behavior score was 2.9 points out of 5 points. The detailed dietary behavior scores of 'I eat kimchi when I eat instant noodles or noodles' and 'I like dried fish with salt' were significantly higher in boys than in girls (p<0.05). It was found that boys consumed more frequently high sodium foods, such as pizza, hamburger, and hotdog than girls. According to the degree of obesity, the underweight group consumed more kimchi fried rice and potato chips frequently than the other groups (p<0.05). Preference for salty taste was not significantly different among the groups by gender and degree of obesity. Sodium-related nutritional knowledge score was 5.3 points out of 10 and which was significantly higher in girls or normal weight group than in boys or obesity group. These results suggest that nutritional education on sodium intake is needed because the nutritional knowledge of adolescents is relatively low. Moreover, intensive nutritional guidance is required, especially in boys or adolescents with undesirable degree of obesity.

Keywords

Sodium intake;dietary behavior;nutritional knowledge;high school student

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