Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Changes in time-use and drug use by young adults in poor neighbourhoods of Greater Buenos Aires, Argentina, after the political transitions of 2001-2002: Results of a survey | Rossi et al. Harm Reduction Journal 2011 8 2 http content 8 1 2 HARM REDUCTION JOURNAL RESEARCH Open Access Changes in time-use and drug use by young adults in poor neighbourhoods of Greater Buenos Aires Argentina after the political transitions of 2001-2002 Results of a survey 1 1 1 1 3 Diana Rossi Dhan Zunino Singh María Pía Pawlowicz Graciela Touzé Melissa Bolyard Pedro Mateu-Gelabert2 Milagros Sandoval2 Samuel R Friedman2 Abstract Background In some countries Big Events like crises and transitions have been followed by large increases in drug use drug injection and HIV AIDS. Argentina experienced an economic crisis and political transition in 2001 2002 that affected how people use their time. This paper studies how time use changes between years 2001 and 2004 subsequent to these events were associated with drug consumption in poor neighbourhoods of Greater Buenos Aires. Methods In 2003-2004 68 current injecting drug users IDUs and 235 young non-IDUs aged 21-35 who lived in impoverished drug-impacted neighbourhoods in Greater Buenos Aires were asked about time use then and in 2001. Data on weekly hours spent working or looking for work doing housework childcare consuming drugs being with friends and hanging out in the neighbourhood were studied in relation to time spent using drugs. Field observations and focus groups were also conducted. Results After 2001 among both IDUs and non-IDUs mean weekly time spent working declined significantly especially among IDUs time spent looking for work increased and time spent with friends and hanging out in the neighbourhood decreased. We found no increase in injecting or non-injecting drug consumption after 2001. Subjects most affected by the way the crises led to decreased work time and or to increased time looking for work-and by the associated increase in time spent in one s neighbourhood-were most likely to increase their time using drugs. Conclusions Time use methods are useful to study .