There are limited validated quantitative assessment methods to measure features of the built and social environment that might form the basis for environmental preventive interventions. This study describes a model approach for epidemiologic assessment of suspected environmental determinants of violence, alcohol and other drug (VAOD) exposure and fills this gap in current research. The investigation sought to test the feasibility of a systematic and longitudinal assessment of residential block characteristics related to physical and social disorder and indicators of VAOD exposure. Planometric data were used to establish a stratified random sample of street segments within defined neighborhoods of an urban metropolitan area. Field rater assessments of these neighborhood street segments were conducted using the Neighborhood Inventory for Environmental Typology (NIfETy). This report provides a detailed description of the NIfETy Method, including metric properties of the NIfETy Instrument and outcomes of training procedures and quality control measures. Also presented are block-level characteristics and estimates of observable signs of VAOD activity. This work is a first step toward developing

Objectives-Establish metric properties of The Neighborhood Inventory for Environmental Typology (NIfETy).Methods-919 residential block faces were assessed by paired raters using the NIfETy. Reliability was evaluated via inter-rater and internal consistency reliability; validity by comparing NIfETy data with youth self-reported violence, alcohol and other drug exposure and crime statistics.Results-Validity and reliability metrics were moderate to exemplary for the total scale and subscales. NIfETy data correlated strongly with crime data and youth self-reported exposure. Conclusions-TheNIfETy is valid and reliable. Future investigations will explore its utility in other urban centers and association to other health outcomes.

This study examines gender differences in the association between environment and internalizing problems in a sample of predominately African American schoolchildren. Internalizing problems was assessed using the Youth Self Report. Violence and alcohol and other drug (AOD) exposure subscales were created using observational assessments of neighborhood blocks. Logistic regression models were used to assess the relationship between neighborhood environment and internalizing problems. For each AOD item present on the block the odds of internalizing problems among girls increased by 17% (OR = 1.17, CI: 1.01, 1.35, p = 0.039). The relationship was not significant among boys. Violence exposure did not predict internalizing problems in boys or girls. These preliminary findings suggest that primary school-aged girls' emotional well-being is more negatively impacted by deleterious environments. Future investigations will examine the relationship between deleterious neighborhood environments and internalizing problems as the children age into adolescence.