Minoru Takakura

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This study explored patterns of health-risk behaviors among Japanese high school students and examined if a cluster and an accumulation of health-risk behaviors existed. Self-administered questionnaires were employed in 1999 using a sample of 1,466 students (male 50.5%, female 49.5%) in grades 10 through 12 at seven public senior high schools in Okinawa,(More)
This cross-sectional study examined the effect of school-level structural social capital on smoking and drinking among Japanese youth. Self-administered anonymous questionnaires were distributed to 3248 students at 29 high schools across Okinawa, Japan in 2008. Structural social capital was measured by students’ participation in organized activities:(More)
Anopheline mosquitos and their relation to malaria transmission were studied 3 times: in July and August, 1999; in December, 1999; and in August and September, 2000. The studies took place in the malaria endemic villages of Khammouane Province, southeast of Lao PDR. A total of 28 species were collected using human and animal bait. Human bait attracted(More)
This study examined the individual and contextual effects of cognitive social capital at school on cigarette smoking and alcohol drinking in Japanese high school students. Self-administered questionnaires were distributed to 3248 students in grades 10-12 (aged 15-18 years) at 29 public high schools across Okinawa, Japan in 2008. The individual-level(More)
We assessed anthropometric indicators of the nutritional status among children and adolescents in Khammouane Province in the Lao PDR and examined the relation between malnutrition and malaria infection. The survey was conducted from July to August 1999 using a sample of 309 youths aged 2 to 18 years. Malnutrition was categorized as stunting (below -2 Z(More)
In order to provide basic data for evaluation of malaria control measures, a study on the knowledge and behavior of people regarding prevention of malaria was carried out in 8 malaria endemic villages in Khammouane Province of Lao PDR from 1999 to 2000. The total valid questionnaire respondents were 932, with a mean age of 32.3 +/- 14.9. 43.7% of the(More)
This study aims to determine if cigarette smoking is associated with engaging in other health-risk behaviors among high school students in Japan. Self-administered anonymous questionnaires were conducted in 1999 using a sample of 1,466 students (male: 50.5%, female: 49.5%) in grades 10 through 12 at seven public senior high schools in urban areas of(More)
PURPOSE To determine the psychosocial factors associated with the presence and persistence of depressive symptoms among high school students in Okinawa, Japan. METHODS The study sample was 3202 students from 12 public senior high schools. Students completed self-administered questionnaires from October through December 1997. We measured depressive(More)
To determine psychosocial factors associated both with depressive symptoms and with gender differences in depressive symptoms among junior high school students, we conducted self-administered questionnaires using a sample of 2,660 students of 13 public junior high schools in Okinawa, Japan. Depressive symptomatology was measured by the Center for(More)
This study examined relationships between age of smoking and drinking initiation, and subsequent patterns of smoking and drinking among Japanese high school students. Self-administered anonymous questionnaires were conducted using a sample of 1,466 students in grades 10 through 12 at seven public senior high schools in urban areas of Okinawa, Japan. After(More)