Mok W K, Ling T K
Department of Applied Science, Hong Kong Institute of Vocational Education, Vocational Training Council, Hong Kong, China.
Glob J Health Sci. 2016 Aug 1;8(8):51788. doi: 10.5539/gjhs.v8n8p31.
The aim of this study was to predict the fruit and vegetable consumption intention of students with mild intellectual disability in Hong Kong by the application of Ajzen's Theory of Planned Behaviour.
50 students with mild intellectual disability (30 male and 20 female), ranging in age from 15 to 38 years, were participated in this study. By means of face-to-face interviews, demographic data, Food Preference and variables of Theory of Planned Behaviour, such as Attitude, Subjective Norm and Perceived Behavioural Control were measured.
20%, 28% and 10% students with mild intellectual disability were rated to be overweight, obese and severely obese respectively. The rest of 10% were classified to be underweight. Regarding the daily intake of fruit and vegetable, 96% students with mild intellectual disability failed to consume sufficient amount. The variables of Theory of Planned Behaviour explained 47.7% of fruit and vegetable consumption intention with significant factors of Attitude, Subjective Norm and Perceived Behavioural Control. Food Preference was found to be a useful construct and further improve the prediction by about 7% after incorporating into the model.
Results of this study indicated that Theory of Planned Behaviour is a useful model to predict dietary intention of students with mild intellectual disability in Hong Kong. Food Preference was a significant predictor to model the intention of fruit and vegetable consumption among students other than Attitude, Subjective Norm and Perceived Behavioural Control.
本研究旨在应用阿詹的计划行为理论预测香港轻度智障学生的果蔬消费意愿。
50名年龄在15至38岁之间的轻度智障学生（30名男性和20名女性）参与了本研究。通过面对面访谈，测量了人口统计学数据、食物偏好以及计划行为理论的变量，如态度、主观规范和感知行为控制。
分别有20%、28%和10%的轻度智障学生被评定为超重、肥胖和重度肥胖。其余10%被归类为体重过轻。关于果蔬的每日摄入量，96%的轻度智障学生未能摄入足够的量。计划行为理论的变量解释了47.7%的果蔬消费意愿，其中态度、主观规范和感知行为控制是显著因素。食物偏好被发现是一个有用的结构，纳入模型后可进一步将预测提高约7%。
本研究结果表明，计划行为理论是预测香港轻度智障学生饮食意愿的有用模型。除了态度、主观规范和感知行为控制外，食物偏好是模拟学生果蔬消费意愿的重要预测因素。
