Skip to page content
Toggle Menu
Site-wide navigation
Topics
Trending
International Trade
Biotechnology
Education Policy
Ukraine
Artificial Intelligence
Topics
Children, Families, and Communities
Cyber and Data Sciences
Education and Literacy
Energy and Environment
Health, Health Care, and Aging
Homeland Security and Public Safety
Infrastructure and Transportation
International Affairs
Law and Business
National Security
Science and Technology
Workers and the Workplace
All Topics
Research & Commentary
Experts
About
Research Divisions
RAND's divisions conduct research on a uniquely broad front for clients around the globe.
U.S. research divisions
RAND Army Research Division
RAND Education, Employment, and Infrastructure
RAND Global and Emerging Risks
RAND Health
RAND Homeland Security Research Division
RAND National Security Research Division
RAND Project AIR FORCE
International research divisions
RAND Australia
RAND Europe
Services & Impact
Careers
Graduate School
Subscribe
Give
Cart
Toggle
Search
Search terms
Submit
RAND
Research & Commentary
Browse by Author
X
Qian Xiao — Publications
Qian Xiao — Publications
Neighborhood Socioeconomic Status, Sleep Duration, and Napping in Middle-To-Old Aged US Men and Women
2018
