RAI prevalence and RAI fraction overall and across cities, NHBS-HET combined 2010 and 2013 cycles. City abbreviations: NO New Orleans, DEN Denver, NAS Nassau, DAL Dallas, ATL Atlanta, SEA Seattle, HOU Houston, SD San Diego, MIA Miami, LA Los Angeles, CHI Chicago, BOS Boston, PHI Philadelphia, NEW Newark, DC Washington DC, SF San Francisco, BAL Baltimore, DET Detroit, NYC New York City, SJ San Juan, Puerto Rico.