Background: Weight misperceptions are common in adolescents and doctors’ advice may help clarify these misperceptions. Few studies have examined how common physicians assess various weight-related factors, including physical measurements, lifestyle factors, and obesity-related medical risks, based on adolescents’ reports and patient characteristics that predict such assessments. Physicians’ weight comments were associated with weight perception in overweight patients, however, such association was unclear in non-overweight adolescents. Objectives: The present study aimed to 1) examine how common adolescents received weight-related factors from private practitioners; 2) identify factors associated with these assessments; 3) assess how common adolescents received weight comments from private practitioners; 4) examine the association of body weight comments by private practitioners with weight perception in adolescents, intention to do more non-exercise physical activity (NEPA), and perceived risk of chronic disease for being overweight. Methods: In the Hong Kong Student Obesity Surveillance (HKSOS) project, 33692 students (44.9% boys; mean age 14.8, SD 1.9 years) from 42 randomly selected schools completed an anonymous questionnaire. The students were asked whether in the past 12 months any private practitioner (or their nurses) had assessed their height, weight, waist circumference (WC), blood pressure (BP), body mass index (BMI), diet, and physical activity. Students were also asked to report any weight status comments received from private practitioners. Perceived risk of chronic disease for being overweight and intention to do more NEPA were also reported. Weight status was based on self-reported weight and height. Multiple imputation was used to replace missing values. Logistic (or ordinal logistic) regression was used to assess the association between student characteristics and assessment of each weight-related factor, and the association of weight comments with adolescent weight perception, perceived risk of chronic disease, and intention to do more NEPA. Results: Among 13283 students who had doctor consultations in the past 12 months, 37.9% received physical measurements or lifestyle enquiries, with weight (20.8%), height (16.8%) and blood pressure (11.5%) being the most common, followed by diet (8.1%), BMI (6.3%), WC (4.6%), and physical activity (4.6%). In general, adolescents who were female, older, underweight or overweight/obese, had parents with higher education level, and had actively asked private practitioners for advice about weight were more likely to receive assessments of weight-related factors. Less than one-fifth (16.8%) of adolescents received height and weight or BMI assessments. Nearly 3 in 10 (28.7%) adolescents reported receiving weight status comments from private practitioners, of which 59.8% were correct. Correct weight status comments were associated with correct weight perceptions among adolescents regardless of weight status. Being told by a private practitioner that one is too fat was positively associated with perceiving higher risk of chronic disease for being overweight in normal weight and overweight adolescents, and more intention to do NEPA in all adolescents. Conclusions: Weight-related factors in adolescents were infrequently assessed by private practitioners in Hong Kong. Generally, unhealthy weight, higher parental education and advice-seeking by adolescents predicted these assessments. Receiving correct weight comments predicted correct adolescent weight perceptions. Practitioners should routinely assess and advise adolescents on weight status. / published_or_final_version / Community Medicine / Master / Master of Philosophy

Thesis (Ph.D.)--University of Western Australia, 2006.

Thesis (M.Sc.). / Written for the School of Dietetics and Human Nutrition. Title from title page of PDF (viewed 2009/06/19). Includes bibliographical references.

Thesis (M.A.)--University of North Carolina at Chapel Hill, 2004. / Includes bibliographical references (leaves 32-35). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references (p. 104-120).

Thesis (Ph.D.) - University of Queensland, 2006. / Includes bibliography.

Thesis (M.A.)--University of North Carolina at Chapel Hill, 2004. / Includes bibliographical references (leaves 32-35).

Thesis (Ph. D.)--State University of New York at Binghamton, Decker School of Nursing, 2005. / Includes bibliographical references.

The purpose of this study was to explore the lives of overweight/obese adolescent boys. A qualitative case study focused on depth of understanding. Four boys volunteered to participate in the study. Findings further our understanding of the adolescent boys’ lifescapes; viable and non-viable recruitment strategies among this population; ethical obligations of ending research after establishing trust and rapport; and “Avoidance” as an Idiom of Distress among this sample of boys. Suggestions for future research are addressed in the study. / vi, 102 leaves ; 29 cm

Childhood obesity is becoming a challenging issue in China, and parents may playa key role in the development of adolescent obesity. However, the relationships between certain parent-related factors and the development of adolescent obesity are rarely reported in China. Therefore, this study aims to investigate the relationship among Chinese parents' perception of their children's weight, parenting behaviors, parenting style, and adolescents' weight status. Two studies were performed to achieve this purpose. / Key words: adolescent obesity, parenting behaviors, parenting styles / The first study (Chapter 3) examines the validity and reliability of the questionnaires for adolescents and parents; the questionnaires are intended to measure parenting behaviors, parents' perception of their children's weight, and parenting styles in the Chinese context. Several steps were performed. First, the questionnaires were selected based on their validity and reliability, as well as their applicability to the Chinese adolescent and parenting context. Second, the questionnaires were translated into Chinese using a cross-cultural translation technique. Third, five experts were invited to evaluate the content validity and feasibility of the questionnaires for application in the Chinese population. Fourth, 15 pairs of adolescents and their parents were invited to attend a short interview after completing the experimental version of the questionnaires. They were asked to share comments on the readability and cultural relevance of the questionnaire. The questionnaires were then revised according to their feedback. Fifth, 127 pairs of adolescents (10-15 years old) and their parents (Ganzhou: 62 pairs, Shantou: 65 pairs) were recruited to examine the retest reliability and internal consistency of the questionnaires. Sixth, the data collected in the main survey were used to examine construct validity. The result showed that 10 items were excluded because of poor content validity or low intraclass correlation coefficient (<0.7). The internal consistencies of the subscales (ranging from 0.61 to 0.81) were found to be acceptable (Cronbach's alpha >0.6). The goodness-of-fit statistics (RMSEA, CFI, and NNFI) also indicated acceptable fit for the theory models. The results suggest that the validity and reliability of the questionnaires are acceptable, and the questionnaires are applicable to Chinese adolescents and parents in Southern China. / The second study (Chapters 4,5,6) determines the relationships among parenting behaviors, parents' perception of their children's weight, parenting style, and adolescent weight status. A total of 2,143 adolescents and 1,869 parents were recruited from secondary schools in Ganzhou and Shantou in China. The adolescents' weights and heights were measured by trained testers. The dietary habits and physical activity level of the adolescents, as well as parenting behaviors, parenting styles, parents' perception of their children's weight, and demographic information were collected through questionnaires issued to the adolescents and parents validated in Study 1. Several parenting behaviors, including "pressure to eat" and "diet and PA monitoring," were found to be significantly related to adolescents' age and gender-specific BMI Z score (Z-BMI), although the correlation coefficients were low (r ranged from -0.23 to 0.09, p (r ranged from -0.23 to 0.09, p<0.01). The results of the hierarchical multiple regression revealed that "pressure to eat" and "diet and PA monitoring" were the predictors of adolescent Z-BMI. The results of Kappa statistics showed that only a slight agreement exists between parental perception of their children's weights and the adolescents' actual weights (Kappa=0.221, p<0.01). A significant difference in parenting behaviors was found between parents with correct and incorrect perceptions of their children's weight. Compared with the reference authoritative parenting style, the odds of acquiring unhealthy dietary habits were significantly higher for children with authoritarian (Father: OR=1.67, 95%CI: 1.29-2.16; Mother: OR=1.72, 95%CI: 1.31-2.26) and neglectful (Father: OR=2.17, 95%CI: 1.66-2.82; Mother: OR=2.29, 95%CI: 1.76-3.00) parents. The odds of being physically inactive for children with neglectful parents were almost twice than that for children with authoritative parents (Father: OR=2.05, 95%CI: 1.37-3.06; Mother: OR=1.77, 95%CI: 1.18-2.67). Significant differences were found in the parenting behaviors of parents with four different parenting styles. However, no association was found between parenting style and adolescent weight. The data of this study suggest that parenting behaviors are weakly but significantly associated with the development of adolescent obesity. Misclassifications of children's weight status were prevalent among Chinese parents. Parental perceptions of their children's weights were associated with some parenting behaviors related to children's weight development. The adolescents' dietary habits, physical activity, and some parenting behaviors were associated with parenting style. However, there was no direct association between parenting style and adolescent weight. / Wen, Xu. / Adviser: Stanley Sai-Chuen Hui. / Source: Dissertation Abstracts International, Volume: 73-03, Section: A, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 130-163). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.