. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: J Clin Child Adolesc Psychol. 2012 Apr 27;41(6):803–810. doi: 10.1080/15374416.2012.675569

Table 2.

Prevalence (%) of Sexual Risk Behaviors by ESM Group

Risk Behavior	ESM+ (n=152)	EMS− (n=582)	χ² (1)
Ever had vaginal or anal sex	61.6	53.6	3.07^*
Two or more partners in last 90 days	58.6	37.5	7.95^*
Positive STI urine screen	14.0	6.3	8.07^*
Unprotected at last sexual intercourse	38.4	28.0	3.35^*
Ever used marijuana	43.5	41.5	.20
Partner used drugs before sex	39.0	33.6	.62
Sex with someone met the same day	26.7	16.4	2.33
Had sex in exchange for money, drugs, or shelter	4.7	1.2	7.39^*
Bought sex with money, drugs, or shelter	0.7	0.7	.02
Used drug/alcohol at last sexual intercourse	37.8	35.2	.10

Note: * indicate p < .05