Mobile phone health apps may now seem to be ubiquitous, yet much remains unknown with regard their usage. Information is limited important metrics, including the percentage of population that uses apps, reasons for adoption/nonadoption, and noncontinuance use.The purpose this study was examine app use among mobile owners in United States.We conducted a cross-sectional survey 1604 users throughout States. The 36-item assessed sociodemographic characteristics, history use/nonuse, perceived...

Neighborhood walkability can influence physical activity. We evaluated the validity of Walk Score® for assessing neighborhood based on GIS (objective) indicators with addresses from four US metropolitan areas several street network buffer distances (i.e., 400-, 800-, and 1,600-meters). Address data come YMCA-Harvard After School Food Fitness Project, an obesity prevention intervention involving children aged 5–11 years their families participating in YMCA-administered, after-school programs...

Abstract Background Weight misperception might preclude the adoption of healthful weight-related attitudes and behaviors among overweight obese individuals, yet limited research exists in this area. We examined associations between weight several a nationally representative sample US adults. Methods Data from 2003-2006 National Health Nutrition Examination Survey (NHANES) were used. Analyses included non-pregnant, (measured body mass index ≥ 25) adults aged 20 older. was identified those who...

Background: Geosocial-networking apps like Grindr have been used increasingly among men who sex with (MSM) to meet anonymous partners. These mobile dating employ global positioning system technology facilitate connections other users based on their current location. new technologies generated quicker and easier modes for potential partners attraction physical proximity. Objective: The aim of this study is describe geosocial-networking app use recent sexual behaviors MSM in the Atlanta...

Background Despite its health benefits, physical inactivity is pervasive, particularly among those living in lower-income urban communities. In such settings, neighborhood safety may impact willingness to be regularly physically active. We examined the association of perceived with pedometer-determined activity and self-efficacy. Methods Findings Participants were 1,180 predominantly racial/ethnic minority adults recruited from 12 low-income housing complexes metropolitan Boston. completed a...

Objectives. We examined whether past-year suicidality among sexual-minority adolescents was more common in neighborhoods with a higher prevalence of hate crimes targeting lesbian, gay, bisexual, and transgender (LGBT) individuals. Methods. Participants’ data came from racially/ethnically diverse population-based sample 9th- through 12th-grade public school students Boston, Massachusetts (n = 1292). Of these, 108 (8.36%) reported minority sexual orientation. obtained on LGBT involving...

Mobile apps hold promise for serving as a lifestyle intervention in public health to promote wellness and attenuate chronic conditions, yet little is known about how individuals with illness use or perceive mobile apps.

Measurements of neighborhood exposures likely vary depending on the definition “neighborhood” selected. This study examined extent to which influences findings regarding spatial accessibility tobacco retailers among youth. We defined (i.e., retail density, closest retailer, and average distance 5 retailers) basis circular network buffers 400 m 800 m, census block groups, tracts by using residential addresses from 2008 Boston Youth Survey Geospatial Dataset (n = 1,292). Friedman tests (to...

Background: Childhood obesity remains a prominent public health problem. Walkable built environments may prevent excess weight gain.Objectives: We examined the association of walkable environment characteristics with body mass index (BMI) z-score among large sample children and adolescents.Methods: used geocoded residential address data from electronic records 49,770 adolescents 4 to < 19 years age seen at 14 pediatric practices Harvard Vanguard Medical Associates August 2011 through...

Geosocial-networking smartphone applications (“apps”) are widely used by gay, bisexual, and other men who have sex with (MSM) facilitate connections between users based on proximity attraction. MSM sexual encounters relationships of varying degrees emotional physical intimacy app-met individuals, potentially placing them at risk for intimate partner violence (IPV). The purpose the current study was to utilize a geosocial-networking application investigate experiences IPV victimization as it...

Abstract There is no safe level of exposure to inorganic arsenic or uranium, yet recent studies identified sociodemographic and regional inequalities in concentrations these frequently detected contaminants public water systems across the US. We analyze county-level association between racial/ethnic composition uranium from 2000–2011 using geospatial models. find that higher proportions Hispanic/Latino American Indian/Alaskan Native residents are associated with significantly concentrations....

This study aimed to examine changes in physical activity among children and adolescents, by race/ethnicity, the United States from 2003-2004 2005-2006.Secondary analysis of objectively measured accelerometer data adolescents 6-19 yr: (n = 1665) 2005-2006 1716) nationally representative National Health Nutrition Examination Survey 2005-2006. We estimated regression coefficients for change between two periods age group, accounting sampling design adjusting age, sex, number hours monitored....

Built environment features of neighborhoods may be related to obesity among adolescents and potentially obesity-related health disparities. The purpose this study was investigate spatial relationships between various built body mass index (BMI) z-score adolescents, if race/ethnicity modifies these relationships. A secondary objective evaluate the sensitivity findings scale analysis (i.e. 400- 800-meter street network buffers).

Geosocial-networking smartphone applications such as Grindr can help men who have sex with (MSM) meet sexual partners. Given the high incidence of HIV in Deep South, purpose our study was to assess risk and preexposure prophylaxis (PrEP) awareness use a sample HIV-uninfected, Grindr-using MSM residing Atlanta, Georgia (n = 84). Most 71; 84.6%) reported being somewhat or very concerned about becoming infected. 74; 88.1%) had been tested for their lifetimes. About three fourths 65; 77.4%) were...

Few studies have used GPS data to analyze the relationship between Walk Score, transportation choice and walking. Additionally, influence of Score is understudied using trips rather than individuals as statistical units. The purpose this study examine associations at trip level mode choice, walking among Paris adults who were tracked with receivers accelerometers in RECORD Study.In Study, 227 participants during seven days accelerometers. Participants also surveyed a GPS-based web mapping...