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Unfortunately, the influence of friendships is a neglected area of investigation in studies of youth physical activity. This study investigated the degree to which three friendship variables (ability to make friends, level of involvement with friends, perceived friends' involvement in exercise/physical activity) was associated with physical activity participation in a sample of 2,519 secondary level students from Chiang Mai Province, Thailand. In general, results showed that overall participation in physical activity was lowest among adolescents who said that making new friends was difficult, who were less involved with friends, and who reported that no or only some of their friends participated in exercise/physical activity. Conversely, adolescents who said that making new friends was easy, who were more involved with friends, and who reported that most of all of their friends were more likely to engage in physical activity themselves. Although physical activity participation among girls was lower than boys, the association between the three friendship variables and participation in physical activity was found for both boys and girls. The results of this study suggest that school health educators should give serious consideration to including friendship skill-development strategies in the mix of strategies currently used to improve participation in physical activity. (Contains 4 tables.)

The purpose of this study was to assess the perceptions of Thailand adolescents regarding the prevalence of smoking, the popularity of smoking among successful/elite elements of society, and disapproval of smoking by friends and parents. These perceptions were analyzed in conjunction with actual smoking and smoking susceptibility rates among the subjects to determine whether beliefs and behaviors were associated with each other. This study was conducted among a school-based sample of 2516 Chiang Mai, Thailand upper secondary and vocational students. Although perceived prevalence of smoking was not associated with smoking outcomes, perceived popularity of smoking among the successful and elite was associated with higher risk, and perceived disapproval by friends/parents was associated with lower risk. Youth smoking programs should consider assessing and taking these social normative factors into account when considering educational intervention strategies that aim to lower adolescent smoking rates. (Contains 5 tables.)

Background: Understanding the cognitive attributions of smoking has the potential to advance youth smoking prevention efforts; however, research on this subject is limited in Asian countries. We attempted to determine the degree to which cognitive attributions of smoking differ among adolescents in 2 Asian countries, Thailand and South Korea. Methods: We surveyed 10th- to 12th-grade students in Chiang Mai, Thailand (N = 2516) and Seoul, South Korea (N = 1166). Logistic regression determined association of attributions and current smoking and differences in attributions between Thai and South Korean students. Results: Items with the highest agreement among South Koreans were "helps me to deal with stress" and "helps relax" and among Thai were "feel like I am making my own decisions" and "keeps from being bored." Significant predictors of current smoking were different between samples. Only 1 cognitive attribution predicted current smoking in both samples ("helps me to deal with stress"). Conclusion: The pattern of relevant cognitive attributions of smoking for the 2 samples was distinct, suggesting that cross-cultural differences merit consideration when designing prevention and cessation programs. Health education should strive to dispel the use of smoking as a coping strategy for dealing with stressful situations and distressful feelings and teach adolescents alternative healthy strategies for dealing with stress. (Contains 5 tables.)

The purpose of this study was to examine the association of cigarette smoking and 2 indicators of psychosocial distress (hopelessness and loneliness) among adolescents from 2 distinctly different regions of the world: Central-Eastern Europe (Hungary, Ukraine, Slovakia, Czech Republic, Romania, Poland) and Southeast Asia (Thailand, Taiwan, and the Philippines). Among Southeast Asian boys and girls, smokers had elevated hopelessness in comparison to nonsmokers but among Central-Eastern European students, this relationship was true only for girls and there was no relationship for boys. Across the country samples, there was only association of smoking with loneliness among Southeast Asian girls and Central-Eastern European girls. While Southeast Asian girls who smoked scored higher on loneliness than nonsmokers, the opposite was true among Central-Eastern European girls, with smokers scoring "lower" on loneliness. (Contains 5 tables.)

The aim of this study was to assess the level of suicide attempts in three school-based samples of Southeast Asian adolescents (Taipei, Taiwan; the Philippines; Chiang Mai, Thailand) and determine whether adolescent suicide attempters score higher on measures of hopelessness and loneliness relative to nonattempters. It was hypothesized that hopelessness and loneliness would be related to suicide attempts, and that hopelessness would continue to be associated with suicide attempts when controlling for loneliness. The prevalence of suicide attempts across the three samples of Asian youth were not consistent with Taiwanese girls and boys as the most likely to have ever attempted suicide. As expected, results showed that suicide attempters (in past 12 months and ever) scored higher on hopelessness and loneliness than nonattempters across all three samples and for both genders. However, the statistical control of loneliness demonstrably weakened the association between suicide attempt behaviour and hopelessness across the samples and for both genders, and resulted in nonsignificant ANCOVA tests for some of the sample-gender groups. These results attest to the need for more research investigating connections between youth suicide attempts, hopelessness and loneliness in adolescent populations. Loneliness should be included as a potential determinant of youth suicidal behaviour in future research. (Contains 5 tables.)

Self-perception of body weight and other weight-related factors were assessed among 2,519 Chiang Mai Province, Thailand high school students. A high percentage of the girls (57.6%) and boys (29.0%) reported that they were too fat and these percentages were higher than those reported by U.S. students in a recent Youth Risk Behavior Survey. Yet, in comparison to U.S. students, the Thai students were less likely than their U.S. counterparts to engage in weight management practices (e.g., dieting, eating less food, using diet pills). Thai students with a self-perception of being too fat were more likely than those with perceptions of being just right or too thin to engage in weight management practices, to be dissatisfied with their weight, feel that they were unattractive, estimate that their same-sex peers were trying to lose weight, and have a higher body mass index. The findings showed a relationship between self-perception of body size and engaging in weight control behaviors consistent with other research. It suggested that self-perception of body weight, more so than objective weight status, was predictive of weight loss behavior and also negative psychological outcomes associated with poor body weight image. As a result, self-perception of weight may be an important point of focus for the design and implementation of clinical and public health initiatives and health education interventions targeted at this adolescent population. [ABSTRACT FROM AUTHOR]

Current models of the nutrition transition focus on demographic changes and economic development. A further influence may be the adoption of western-based perceptions of beauty that lead to potentially harmful eating behaviours which contribute to overweight, obesity, and eating disorders. This paper proposes a comprehensive model of the nutrition transition that includes western influences on perceived attractiveness and subsequent eating styles. An exploratory test of this model for Asian countries explores differences in intuitive eating as a function of economic development and the adoption of western standards of beauty. The intuitive eating scale (IFS), a measure of food consumption that is primarily characterized by the satisfaction of physical hunger, was used to evaluate agreement with intuitive eating principles in the US and four Asian countries (Japan, Thailand, the Philippines, and China). Although intuitive eating scores in the US and Thailand failed to follow predicted patterns on two of the four IES subscales, scores for the other two IES subscales and the total lES score followed predicted patterns for Asian countries. Intuitive eating appears to be a valid, measurable concept that is correlated with economic development and levels of western influence in Asian countries. The tentative findings of this exploratory study support further evaluation of cultural influences as an important component of the nutrition transition. [ABSTRACT FROM AUTHOR]

Objective: To describe characteristics and determinants of Thailand's declining birth rate using national representative survey data., Material and Method: The Fourth National Health Examination Survey was conducted between 2008 and 2009. Four stages of stratified probability samples, proportionate to size, were used to represent the whole Thai population. Information from women aged 35 to 59 years old was included in the analysis. Curve estimation was used to characterize the correlation between the number of children ever born and the age of married and un-married women. Binary logistic regression analysis was used to identify predictors of having fewer than two children among ever married women., Results: Of all 4120 women, the number of children decreased sharply among the oldest women aged 45 to 59 years old, decreased less sharply for women younger than 45 years of age, reached the lowest level at the age of 37 and 38 years old, and then increased minimally among the younger women surveyed. Among those who were ever married (n = 3,761), the independent predictors of having one or no child instead of having two or more children were aged 45 to 49 compared to 50 to 59 years old (OR = 1.66; 95% CI = 1.37-2.00), age 35 to 44 compared to 50 to 59 years old (OR = 1.39; 95% CI = 1.16-1.68), living in households with wealth index level 3 compared to level 1 (OR = 1.28; 95% CI = 1.01-1.63), urban residence (OR = 1.33; 95% CI = 1.14-1.57), attaining secondary school education (OR = 1.35; 95% CI = 1.11-1.64), and having junior college diploma or higher level of education compared to elementary or no education (OR = 1.81; 95% CI = 1.39-2.34)., Conclusion: Birth rate of Thai women declined steeply in the past then less steeply, and might have begun to rise minimally in recent years. Younger age, living in an urban area, and having higher socioeconomic status were predictors of having fewer than two children.

The Meanings of Smoking Index-2 (MSI-2) was administered to 2516 Thai adolescents in an urban, suburban, rural, and vocational high school. Factor analysis identified six meanings of smoking factor domains: coping, social image, stimulation, weight, independence, and difficulty refusing smoking. Logistic regression analyses determined that the strongest positive association with smoking behavior and ever smoking was the coping domain, and coping was also positively associated with susceptibility to smoking. The individual meaning item which most differentiated current smokers from nonsmokers was "keeps from being bored" and the dimension of stimulation (gives more energy, helps to concentrate, helps to study, gives something to do) was positively associated with current smoking. Findings suggest that meanings of smoking is important because it can provide guidance to health educators and other health professionals in tailoring smoking prevention and cessation interventions by identifying and targeting meanings that are salient within specific adolescent populations.

Youth cigarette smoking is a major public health concern in Southeast Asia. A suspected determinant of youth smoking is perceived peer behavior. Previous research has suggested that the probability that a teenager will use substances increases when there is the perception that most peers engage in the substance use behavior. This study aimed to assess the perceptions of the prevalence of peer cigarette smoking in samples of high school students from three Southeast Asian countries and to examine the association of these perceptions to self-reported personal use of cigarettes. Perceptions of the prevalence of peer smoking were generally characterized by the perception that most students do not smoke. However, a significant percentage of students held the perception that most students were current smokers. Students who held this perception were at increased risk of being current smokers relative to those who believed most students were not current smokers. The results of this study imply that public health programs may benefit from health promotion interventions which focus on dispelling misconceptions that most youth smoke cigarettes.

Saffron is a well-known spice and food colorant commonly consumed in different parts of the world. Recently, much attention has been focused on the biological and medicinal properties of saffron. In the present study the interactive effects of saffron with two commonly consumed dietary agents, garlic and curcumin was evaluated for anti-genotoxic effects against cyclophosphamide (CPH) in the mouse bone marrow micronucleus test. Experimental animals were orally pretreated with saffron (100 mg/kg body weight), garlic (250 mg/kg body weight) and curcumin (10 mg/kg body weight), either alone or in combination for five consecutive days, 2h prior to the administration of CPH. Maximum reduction in the frequencies of micronucleated polychromatic erythrocytes (Mn PCEs) induced by CPH was observed when all the three test compounds were administered together. Furthermore, the protective effects were more pronounced in the garlic-administered groups compared to curcumin and/or saffron administered groups.

Students are becoming the majority of new amphetamine users in Thailand. This study compared urinalysis results with peer responses to individual characteristics related to substance use with the aim of identifying "at-risk" students. A randomly selected group of students from a public high school in northern Thailand was asked to fill out the names of classmates they viewed as having any of forty-three risk behaviors set out in a questionnaire. A total of 564 students were included, from whom urine specimens were collected on the first two days following the school break. An immunoassay test was used to screen the specimens and positive results were confirmed using thin-layer chromatography. About 4% of urinalysis results were methamphetamine-positive. Using urine test results as the standard, the sensitivity of peer responses to alienated behavior was 81.8%, while frequent class/school absenteeism and low concentration levels were somewhat lower, at 77% and 68%, respectively. Delinquency showed the least sensitivity at 50%. The McNemar chi2 test showed significant differences between urine test results and each peer response subscale (p < 0.001). This preliminary analysis has shown that peer responses with regard to substance-related behavior compare well with urine test results.