Nutrition Postgraduate Program, Federal University of São Paulo, Rua Marselhesa 630, Vila Clementino, 04020-060, São Paulo SP, Brazil.
Psychobiology Department, Federal University of São Paulo, Rua Botucatu, 862 - 1st Floor, 04023-062, São Paulo SP, Brazil.
Appetite. 2018 Jan 1;120:464-471. doi: 10.1016/j.appet.2017.10.004. Epub 2017 Oct 6.
This study aimed to compare answers given by parents and their adolescent children to the Portuguese version of the Parent Mealtime Action Scale (PMAS) and to assess associations among the reported behaviors. To compare these answers, a cross-sectional study was conducted in a sample of 72 patients of the Obesity Clinic of the Division of Nutrology of the Pediatrics Department at the Federal University of São Paulo (Unifesp), Brazil. These patients were aged from 10 years to 19 years and 11 months, and their parents or legal guardians also participated. First, parents were interviewed and instructed to answer how often they perform each behavior measured by the PMAS (never, sometimes or always). Next, the same questions were answered by the adolescents. The general linear model (GLM) showed the effects of the interviewees and of the interaction between interviewees and sex. We also observed a triple interaction effect (sex x interviewees x categorized age). The internal reliability of the PMAS was higher for parental answers than for those given by the children. This finding is probably observed because the scale has been developed and validated to evaluate the pattern of parental responses concerning their eating practices during their children's meals. In addition, although parents believe they are engaging in certain behaviors, the effectiveness of these strategies may not be recognized by their children. Very low intraclass correlation coefficients were observed between parents' and children's answers to the original domains of the PMAS (ICC: 0.130-0.578), suggesting that the factorial structure of the PMAS may only be used to assess parental behavior, as it is not sufficiently accurate to assess the children's understanding of parent mealtime actions.
本研究旨在比较父母和青少年子女对葡萄牙语版父母进餐行为量表（PMAS）的回答，并评估报告行为之间的关联。为了比较这些答案，在巴西圣保罗联邦大学（Unifesp）儿科学营养分部肥胖诊所的一个 72 名患者样本中进行了横断面研究。这些患者年龄在 10 岁至 19 岁 11 个月之间，他们的父母或法定监护人也参与了研究。首先，对父母进行访谈，并指导他们回答 PMAS 测量的每个行为的发生频率（从不、有时或总是）。然后，青少年回答了同样的问题。一般线性模型（GLM）显示了受访者和受访者与性别之间相互作用的影响。我们还观察到三重交互作用（性别 x 受访者 x 分类年龄）。PMAS 的父母回答的内部信度高于儿童的回答。这种发现可能是由于该量表是为评估父母在孩子用餐时的饮食行为模式而开发和验证的。此外，尽管父母认为他们在采取某些行为，但他们的孩子可能不会意识到这些策略的有效性。父母和孩子对 PMAS 原始领域的回答之间观察到非常低的组内相关系数（ICC：0.130-0.578），这表明 PMAS 的因子结构可能仅用于评估父母的行为，因为它不够准确来评估孩子对父母进餐行为的理解。
