DOI: 10.3886/icpsr27881.v4
title: National Longitudinal Study of Adolescent Health (Add Health), 1994-2008: Obesity and Neighborhood Environment Files [Restricted Use]
title: Version 4

description: The Obesity and Neighborhood Environment (ONE) database is a collection of variables derived using spatial analysis techniques that link community-level data to individual Add Health respondent residential locations in both space and time. The database provides physical, social, and economic neighborhood environment measures corresponding with Add Health respondent locations in Waves I and III. Community-level data include density and proximity to recreational facilities, land use patterning, population, economic, climate, and crime statistics, which are linked spatially and temporally to individual-level Add Health behavior and health outcome data. Request for these files must include a brief justification explaining the necessity and relevance of the data to the research agenda. There are no special security requirements. For more information, please see the study website.
description: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Performed consistency checks.; Created variable labels and/or value labels.; Standardized missing values.; Checked for undocumented or out-of-range codes..
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: Wave I Climate Data 
 DS2: Wave I Street Connectivity Files 
 DS3: Wave I Crime Data 
 DS4: Wave I Geocode Source 
 DS5: Wave I Land Cover Data 
 DS6: Wave I Parks Data 
 DS7: Wave I 1990 Population Density 
 DS8: Wave I Resources 
 DS9: Wave I School Distance Measures 
 DS10: Wave I Urban Distances 
 DS11: Wave I Weather Data 
 DS12: Wave III Climate Data 
 DS13: Wave III Street Connectivity Files 
 DS14: Wave III Crime Data 
 DS15: Wave III Geocode Source 
 DS16: Wave III Land Cover Data 
 DS17: Wave III Mobility Data 
 DS18: Wave III MSA Dataset 
 DS19: Wave III Parks Data 
 DS20: Wave III 2000 Population Density 
 DS21: Wave III Resources 
 DS22: Wave III Urban Distances 
 DS23: Wave III Weather Data 
 DS24: Wave III ACCRA Cost of Living Index 
 DS25: Wave III Employment 
 DS26: Wave III Length of Day Dataset 
 DS27: Wave III Road Type Length 
 DS28: Wave III Rural-Urban Commuting Area (RUCA) 
 DS31: Wave I ACCRA Cost of Living Index 
 DS32: Wave I Employment 
 DS33: Wave I Length of Day Dataset 
 DS34: Wave I Road Type Length 
 DS35: Wave I Rural-Urban Commuting Area (RUCA)
description: record abstracts, coded on-site observation 
2014-06-30 This study has been deaccessioned and is no longer distributed by ICPSR or DSDR.
 Wave I and Wave II field work was conducted by the National Opinion Research Center of the University of Chicago. Wave III field work was conducted by the Research Triangle Institute.
description: Adolescents in grades 7-12 and their families. Smallest Geographic Unit: neighborhood