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Journal of Epidemiology

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https://www.readbyqxmd.com/read/30416164/commentary-test-negative-design-reduces-confounding-by-healthcare-seeking-attitude-in-case-control-studies
#1
Kotaro Ozasa, Wakaba Fukushima
No abstract text is available yet for this article.
November 10, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30416163/nationwide-survey-of-pediatric-inpatients-with-hand-foot-and-mouth-disease-herpangina-and-associated-complications-during-an-epidemic-period-in-japan-estimated-number-of-hospitalized-patients-and-factors-associated-with-severe-cases
#2
Maria Takechi, Wakaba Fukushima, Takashi Nakano, Miki Inui, Satoko Ohfuji, Tetsuo Kase, Kazuya Ito, Kyoko Kondo, Akiko Maeda, Hiroyuki Shimizu, Yoshio Hirota
BACKGROUND: Severe pediatric cases of hand, foot, and mouth disease (HFMD), herpangina (HA), and associated complications caused by enterovirus 71 (EV71) infection have brought substantial public health impact in Asia. This study aimed to elucidate the epidemiology of these pediatric cases in Japan. METHODS: A nationwide survey was conducted using stratified random sampling of hospital pediatric departments. We estimated the number of inpatients with HFMD, HA, and associated complications between April 1 and September 30, 2010, during which EV71 was circulating predominantly...
November 10, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30416162/severity-of-nausea-and-vomiting-in-singleton-and-twin-pregnancies-in-relation-to-fetal-sex-the-japan-environment-and-children-s-study-jecs
#3
Naomi Mitsuda, Masamitsu Eitoku, Nagamasa Maeda, Mikiya Fujieda, Narufumi Suganuma
BACKGROUND: Some studies have indicated that female birth and multiple births were risk factors for nausea and vomiting during pregnancy (NVP). The results, however, were conflicting. Our study was conducted to evaluate the association of maternal NVP with fetal sex in singleton and twin pregnancies. METHODS: We used the data set from a birth cohort study, the Japan Environment and Children's Study (JECS). In the self-administered questionnaire, participants were asked whether they experienced NVP prior to 12 gestational weeks...
November 10, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30393269/association-between-body-mass-index-and-all-cause-death-in-japanese-population-pooled-individual-participant-data-analysis-of-13-cohort-studies
#4
Atsushi Hozawa, Takumi Hirata, Hiroshi Yatsuya, Yoshitaka Murakami, Shinichi Kuriyama, Ichiro Tsuji, Daisuke Sugiyama, Atsushi Satoh, Sachiko Tanaka-Mizuno, Katsuyuki Miura, Hirotsugu Ueshima, Tomonori Okamura
BACKGROUND: To investigate the optimal values of BMI for the lowest risk of all-cause death and whether the optimal BMI differs according to smoking status in large-scale pooled analysis of 13 Japanese cohorts. METHODS: Data from 179,987 participants of 13 well-qualified cohort studies conducted throughout Japan were used for our analysis. A cohort-stratified Cox proportional hazard model was used. P values for interactions were calculated based on the cross product of BMI and age, sex, or smoking status...
November 3, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30369512/bathing-frequency-and-onset-of-functional-disability-among-japanese-older-adults-a-prospective-3-year-cohort-study-from-the-jages
#5
Akio Yagi, Shinya Hayasaka, Toshiyuki Ojima, Yuri Sasaki, Taishi Tsuji, Yasuhiro Miyaguni, Yuiko Nagamine, Takao Namiki, Katsunori Kondo
BACKGROUND: While bathing styles vary among countries, most Japanese people prefer tub bathing to showers and saunas. However, few studies have examined the relationship between tub bathing and health outcomes. Accordingly, in this prospective cohort study, we investigated the association between tub bathing frequency and the onset of functional disability among older people in Japan. METHODS: We used data from the Japan Gerontological Evaluation Study (JAGES). The baseline survey was conducted from August 2010 to January 2012 and enrolled 13,786 community-dwelling older people (6,482 men and 7,304 women) independent in activities of daily living...
October 27, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30369511/japanese-nationwide-study-on-the-association-between-short-term-exposure-to-particulate-matter-and-mortality
#6
Takehiro Michikawa, Kayo Ueda, Akinori Takami, Seiji Sugata, Ayako Yoshino, Hiroshi Nitta, Shin Yamazaki
BACKGROUND: From around 2012, the use of automated equipment for fine particulate matter (PM2.5 ) measurement with equivalence to a reference method has become popular nationwide in Japan. This enabled us to perform a national health effect assessment employing PM2.5 concentrations based on the standardised measurement method. We evaluated the association between non-accidental mortality and short-term exposure to PM2.5 and coarse particulate matter (PM), with the latter estimated as the difference between suspended particulate matter and PM2...
October 27, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30369510/objectively-assessed-patterns-and-reported-domains-of-sedentary-behavior-among-japanese-older-adults
#7
Ai Shibata, Koichiro Oka, Kaori Ishii, Rina Miyawaki, Shigeru Inoue, Takemi Sugiyama, Neville Owen
BACKGROUND: Prolonged periods of sitting time can be adversely associated with older adults' well-being and functional capacities. Understanding patterns and contexts of sedentary behaviors (SB) can inform approaches to prevention. This study examined Japanese older adults' objectively-assessed patterns and reported domains of SB and their interrelationships. METHODS: Participants (n = 297; aged 65-84 years) of this cross-sectional study wore an accelerometer for 7 days and completed a survey...
October 27, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344200/determining-the-optimal-number-of-wearing-days-given-a-fixed-number-of-accelerometers-in-population-level-study
#8
Paul H Lee
BACKGROUND: In research using accelerometers to measure physical activity, the number of accelerometers that can be utilized in a study and the study duration are both constrained. It means that increasing the number of accelerometer wearing days for all subjects leads to a decrease in the total number of participants the study can recruit. We used simulations to find the optimal number of wearing days / number of participant combination given a fixed number of accelerometer days. METHODS: Two scenarios were studied here, including estimation of population physical activity level and the association between physical activity level and a health outcome...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344199/case-control-study-of-rotavirus-vaccine-effectiveness-compared-to-test-negative-controls-or-hospital-controls
#9
Kaoru Araki, Megumi Hara, Chisato Shimanoe, Yuichiro Nishida, Muneaki Matsuo, Keitaro Tanaka
BACKGROUND: Selection of test-negative controls takes less time and costs less than traditional control selection for evaluating vaccine effectiveness (VE). Here, rotavirus VE was evaluated using hospital controls and compared with test-negative controls to determine whether using the latter can substitute for the former. METHODS: We recorded gastroenteritis in children from 2 months to 2 years of age at six medical facilities in Saga City between January 4th and May 31st, 2014...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344198/unilateral-mastication-evaluated-using-asymmetric-functional-tooth-units-as-a-risk-indicator-for-hearing-loss
#10
Joo-Young Lee, Eun-Song Lee, Gyung-Min Kim, Hoi-In Jung, Jeong-Woo Lee, Ho-Keun Kwon, Baek-Il Kim
BACKGROUND: Some previous studies reported hearing ability can be reduced by impaired masticatory ability, but there has been little evidence reported of an association between hearing loss and unilateral mastication. Therefore, this study aimed to investigate the relationship between unilateral mastication (UM), estimated from individual functional tooth units (FTUs), and hearing loss in a representative sample of Korean adults. METHODS: The analyzed data were obtained from 1,773 adults aged 40-89 years who participated in Korean national survey...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344197/the-lead-lung-heart-social-body-study-objectives-methodology-and-external-validity-of-the-population-based-cohort-study
#11
Robab Breyer-Kohansal, Sylvia Hartl, Otto Chris Burghuber, Matthias Urban, Andrea Schrott, Alvar Agusti, Torben Sigsgaard, Claus Vogelmeier, Emiel Wouters, Michael Studnicka, Marie-Kathrin Breyer
BACKGROUND: The Lung, hEart, sociAl, boDy (LEAD) Study (ClinicalTrials.gov; NCT01727518; http://clinicaltrials.gov) is a longitudinal, observational, population-based Austrian cohort that aims to investigate the relationship between genetic, environmental, social, developmental and ageing factors influencing respiratory health and comorbidities through life. The general working hypothesis of LEAD is the interaction of these genetic, environmental and socioeconomic factors influences lung development and ageing, the risk of occurrence of several non-communicable diseases (respiratory, cardiovascular, metabolic and neurologic), as well as their phenotypic (ie, clinical) presentation...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344196/association-of-free-sugar-intake-estimated-using-a-newly-developed-food-composition-database-with-lifestyles-and-parental-characteristics-among-japanese-children-aged-3-6-years-donguri-study
#12
Aya Fujiwara, Kentaro Murakami, Keiko Asakura, Ken Uechi, Minami Sugimoto, Han-Chieh Wang, Shizuko Masayasu, Satoshi Sasaki
BACKGROUND: The lack of comprehensive food composition databases for sugar contents in Japanese foods has led to the lack of nutritional epidemiologic studies on sugar intake in Japanese population. This cross-sectional study aimed to investigate the association of free sugar intake estimated using a newly-developed food composition database with the characteristics and lifestyles of Japanese children aged 3-6 years. METHODS: The food composition database contained information on sugars in 2222 commonly consumed Japanese foods...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344195/the-differential-effects-of-age-on-the-association-between-childhood-socioeconomic-disadvantage-and-subjective-symptoms-of-dementia-among-older-japanese-people
#13
Hiroshi Murayama, Mika Sugiyama, Hiroki Inagaki, Chiaki Ura, Fumiko Miyamae, Ayako Edahiro, Keiko Motokawa, Tsuyoshi Okamura, Shuichi Awata
BACKGROUND: Despite increasing evidence of an association between childhood socioeconomic disadvantage and cognitive outcomes, such as dementia and cognitive decline, in Western countries, there are no studies on this association from non-Western societies. We investigated the relationship between childhood socioeconomic status (SES) and subjective symptoms of dementia among community-dwelling older Japanese people and examined age and sex variations in this association. METHODS: Data were derived from a cross-sectional survey for all community-dwelling individuals aged 65 years and over in Adachi, Tokyo (n = 132,005)...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344194/long-term-body-weight-gain-after-maturity-is-associated-with-the-incidence-of-chronic-kidney-disease-ckd-independent-of-current-body-weight-in-middle-aged-and-older-men
#14
Ryoma Michishita, Takuro Matsuda, Shotaro Kawakami, Satoshi Tanaka, Akira Kiyonaga, Hiroaki Tanaka, Natsumi Morito, Yasuki Higaki
BACKGROUND: This study investigated the relationship between long-term body weight gain after maturity and the incidence of chronic kidney disease (CKD). METHODS: The participants were 303 men without a history of cardiovascular and cerebrovascular diseases, kidney dysfunction, or dialysis treatment. Their body weight gain after maturity was examined using a standardized self-administered questionnaire. The participants were divided into two groups based on the presence/absence of a body weight gain of ≥10 kg since 20 years of age...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344193/does-the-type-of-temporary-housing-make-a-difference-in-social-participation-and-health-for-evacuees-of-the-great-east-japan-earthquake-and-tsunami-a-cross-sectional-study
#15
Taro Kusama, Jun Aida, Kemmyo Sugiyama, Yusuke Matsuyama, Shihoko Koyama, Yukihiro Sato, Takafumi Yamamoto, Ayaka Igarashi, Toru Tsuboya, Ken Osaka
BACKGROUND: Although majority of survivors of the huge earthquake and tsunami evacuated to two types of temporary housings, prefabricated housing and rented housing, health effects of these different environments were unclear. We examined whether prevalent social participation in prefabricated housing brought larger health benefits than in rented housing using the largest health survey data of the disaster survivors. METHODS: This cross-sectional study used a 2012 survey by the Miyagi Prefectural Government in which almost all of evacuees were targeted (response rate = 61...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30344192/the-hekinan-children-s-study-design-and-profile-of-participants-at-baseline
#16
Chisato Nagata, Keiko Wada, Yukari Sahashi, Takashi Tamura, Kie Konishi, Yuko Goto, Michiyo Yamakawa, Sachi Koda, Fumi Mizuta, Takahiro Uji, Kozue Nakamura, Michiko Tsuji, Hideshi Nagai, Naoko Itakura, Kou Harada, Osamu Takahara, Hiromichi Yamanaka
BACKGROUND: The early life environment is now recognized as a key factor contributing to susceptibility to certain diseases in later life. METHODS: We initiated a cohort study among school children in 2011 to primarily investigate the associations between lifestyle and environmental factors and some surrogate markers of chronic diseases, such as cardiometabolic risk factors (ie, obesity, high blood pressure, high blood glucose, insulin, or lipids) and cancer risk factors (ie, height and age at menarche)...
October 20, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30318495/study-profile-the-japan-society-and-new-tobacco-internet-survey-jastis-a-longitudinal-internet-cohort-study-of-heat-not-burn-tobacco-products-electronic-cigarettes-and-conventional-tobacco-products-in-japan
#17
Takahiro Tabuchi, Tomohiro Shinozaki, Naoki Kunugita, Masakazu Nakamura, Ichiro Tsuji
BACKGROUND: Japan became the first country where heat-not-burn tobacco products were sold. Therefore, there was no information for actual status of heat-not-burn tobacco products.The objectives of the study profile are to inform that data can be freely available to external researchers, and to create collaborative research projects in the future. METHODS: The Japan "Society and New Tobacco" Internet Survey (JASTIS) is a longitudinal internet cohort study which investigates perception, attitude and use of heat-not-burn tobacco, electronic cigarettes (e-cigarettes) and conventional tobacco products in Japan...
October 13, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30318494/cross-sectional-association-between-types-of-leisure-activities-and-self-rated-health-according-to-gender-and-work-status-among-older-japanese-adults
#18
Kimiko Tomioka, Norio Kurumatani, Keigo Saeki
BACKGROUND: Participation in leisure activities (LA) is essential for successful aging. Our aim was to investigate the cross-sectional association of types of LA with self-rated health (SRH) by gender and work status. METHODS: The target population was all residents aged ≥65 years in a municipality (n = 16,010, response rate of 62.5%). We analyzed 4,044 men and 4,617 women without disabilities. LA were categorized into 14 types. SRH was assessed through the SF-8...
October 13, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30318493/association-between-maternal-serum-folate-concentrations-in-the-first-trimester-and-the-risk-of-birth-defects-the-hokkaido-study-of-environment-and-children-s-health
#19
Kumiko Ito, Tomoyuki Hanaoka, Naomi Tamura, Seiko Sasaki, Chihiro Miyashita, Atsuko Araki, Sachiko Ito, Hisanori Minakami, Kazutoshi Cho, Toshiaki Endo, Tsuyoshi Baba, Toshinobu Miyamoto, Kazuo Sengoku, Akiko Tamakoshi, Reiko Kishi
BACKGROUND: Low red blood cell folate concentrations during early pregnancy might cause neural tube defects. However, the association between folate concentrations and birth defects of other neural crest cell-derived organs remains unknown. We investigated the associations between birth defects and first-trimester serum folate concentrations in a birth-cohort study in Japan. METHODS: In total, 14,896 women who were prior to 13 weeks of gestation were enrolled from 2003 through 2012...
October 13, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/30298864/perceived-barriers-to-career-progression-among-early-career-epidemiologists-report-of-a-workshop-at-the-22nd-world-congress-of-epidemiology
#20
Hiroyuki Kikuchi, Keisuke Kuwahara, Kosuke Kiyohara, Ester Villalonga-Olives, Naomi Brewer, Abimbola Aman-Oloniyo, Pradeep Aggarwal, María Clara Restrepo-Méndez, Azusa Hara, Masako Kakizaki, Yuka Akiyama, Kazunari Onishi, Kayo Kurotani, Maho Haseda, Shiho Amagasa, Isao Oze
No abstract text is available yet for this article.
October 6, 2018: Journal of Epidemiology
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