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. Author manuscript; available in PMC: 2015 May 14.
Published in final edited form as: Int J Sex Health. 2014 Aug 15;27(2):145–155. doi: 10.1080/19317611.2014.947055

Table 4.

Drug use by city

Hanoi Nha Trang HCMC Overall Significance
Current drug use (past 30 days)
 Alcohol 82.4% 93.5% 80.4% 83.9% x2=13.75, p=.001
 Tobacco 74.4% 73.4% 70.9% 72.7% n.s.
 Marijuana 12.0% 13.0% 6.9% 10.0% n.s.
 Ecstasy 8.0% 12.3% 15.7% 12.3% x2=7.56, p=.023
 Amphetamines 3.6% 8.4% 32.0% 16.9% x2=89.18, p<.001
Any illicit drug
 Lifetime use 52.0% 59.1% 66.0% 59.6% x2=11.24, p=.004
 Current use (past 30 days) 29.2% 28.6% 40.8% 34.1% x2=10.97, p=.004