Materials and Methods: A cross-sectional survey was conducted in the intermediate and high schools in the Riyadh region, Saudi Arabia. The Arabic version of the International Study of Asthma and Allergies in Children (ISAAC) questionnaire tool was distributed to 568 students in the rural area and 556 students in the urban area. The factors such as lifetime, 12 months, and the severity prevalenc...

Value creation is considered as key to collaborative customer-supplier relationships. Despite the growing body of research, more knowledge is needed about the construct of relationship value and its operationalization. The present paper provides a definition of relationship value and develops a scale for measuring the concept in business-to-business markets. Findings from a cross-sectional surv...

p eople’s business credit program (kur) has been launched to alleviate poverty through provision of micro financing to micro entrepreneurs in indonesia this study aims to estimate the impact of kur program using cross-sectional data and propensity score matching technique (psm). the survey was conducted on 332 household entrepreneurs, consisting of 155 kur receivers and 177 non-kur receivers. r...

OBJECTIVE This study examined how knowledge, risk perception, health beliefs and multidimensional health locus of control (HLC) were associated with caregivers' intention to vaccinate their child, and how these associations varied across child age groups. SETTING South Korea. METHODS The cross-sectional survey was conducted via a face-to-face interview among 1017 nationally representative c...

OBJECTIVE To explore whether subscribers reported clinical practice changes as a result of reading the Clinical Communiqué (CC). Secondarily, to compare the characteristics of subscribers who self-reported changes to clinical practice with those who did not, and to explore subscribers' perceptions of the educational value of the CC. DESIGN, SETTING AND PARTICIPANTS Online cross-sectional surv...

Population stratification or confounding by genetic ancestry is a potential cause of false associations in genetic association studies. Estimation of and adjustment for genetic ancestry has become common practice thanks in part to the availability of ancestry informative markers on genome-wide association study (GWAS) arrays. While array data is now widespread, these data are not ubiquitous as ...

METHODS. A cross-sectional study was performed among subjects ranging in age from 55 to 74 years who participated in the population-based Rotterdam Study. Perifoveal vessels were counted in a masked way by two observers within 1500 )Ltm from the foveola on fundus transparencies of 34 cases with hypertension, 55 with lower extremity arterial disease (LEAD), 27 with hypertension and LEAD, and 194...