Ikuho Yamada

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Few studies compare alternative measures of land use diversity or mix in relationship to body mass index. We compare four types of diversity measures: entropy scores (measures of equal distributions of walkable land use categories), distances to walkable destinations (parks and transit stops), proxy measures of mixed use (walk to work measures and(More)
BACKGROUND Rising rates of overweight and obesity in the U.S. have increased interest in community designs that encourage healthy weight. This study relates neighborhood walkability-density, pedestrian-friendly design, and two novel measures of land-use diversity-to residents' excess weight. METHODS Walkable-environment measures include two established(More)
Prospective disease surveillance has gained increasing attention, particularly in light of recent concern for quick detection of bioterrorist events. Monitoring of health events has the potential for the detection of such events, but the benefits of surveillance extend much more broadly to the quick detection of change in public health. In this paper,(More)
We expand the search for modifiable features of neighborhood environments that alter obesity risk in two ways. First, we examine residents' access to neighborhood retail food options in combination with neighborhood features that facilitate physical activity. Second, we evaluate neighborhood features for both low income and non-low income neighborhoods(More)
Magnetic Materials Laboratory, RIKEN (The Institute of Physical and Chemical Research), Wako 351-0198, Japan CREST, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan LASSP, Department of Physics, Cornell University, Ithaca, New York 14853, USA CMPMS Department, Brookhaven National Laboratory, Upton, New York 11973, USA Département de Physique,(More)
INTRODUCTION Statistical systems designed for syndromic surveillance often must be able to monitor data received simultaneously from multiple regions. Such data might be of limited size, which would eliminate the possibility of using more common surveillance methods that assume data from a normal distribution. OBJECTIVES The objectives of this study were(More)
BACKGROUND A burgeoning literature links attributes of neighbourhoods' built environments to residents' physical activity, food and transportation choices, weight, and/or obesity risk. In cross-sectional studies, non-random residential selection impedes researchers' ability to conclude that neighbourhood environments cause these outcomes. METHODS(More)
The growing obesity epidemic in the United States has served as the catalyst for promoting studies examining linkages between modifiable features of neighborhood food environments and the risk of being overweight and/or obese. Past studies have used several data sources to measure various dimensions of local food environments (e.g., number of fast food(More)