[영문]This study investigated inequalities in physically healthy days in the United States during 1993?1999, by socioeconomic and demographic group. The generalized entropy GE(2) and other indices were computed using data from the Behavioral Risk Factor Surveillance System survey, 1993?1999. The results indicate that GE(2) for the US population increased by 17% during 1993?1999. Low-to-middle income groups had the highest increases in inequalities during this time (51?66%), whereas the least educated, Asian/Pacific Islanders, American Indians/Alaska Natives, the oldest, the youngest, and the richest had the lowest (?14?10%). In 1999, inequalities ranged from 0.0153 (income ?