The Frequency of High-Risk Behaviors Among Iranian College Students Using Indirect Methods: Network Scale-Up and Crosswise Model.
BACKGROUND
Since the direct questions usually underestimate the frequency of sensitive behaviors, indirect methods can be used to estimate the frequency of some risky behaviors such as illicit drug use, sexual behaviors especially where these behaviors are highly stigmatized.


OBJECTIVE
In the current study, we indirectly estimated the prevalence of some risky behaviors among college students using two indirect methods: network scale-up (NSU) and crosswise model (CM).


METHODS
Having recruited 563 students from one of Iran's major medical universities, the prevalence of opium and drug use, alcohol consumption, relationships with the opposite sex (RWOS),and extra/pre-marital sex (EPMS) were estimated using two indirect methods.


RESULTS
The estimated prevalence using the CM and NSU were alcohol consumption (16.8% vs. 8.1%), opium use (2.2% both), methamphetamine use (7.2% vs. 1.2%), taking tramadol without medical indications (14.8% vs. 4.8%), RWOS (42.3% vs. 31.9%), and EPMS (12.4% vs. 7.1%).


CONCLUSIONS
Lower estimations in the NSU method might be due to the transmission barrier, which means that students were not fully aware of the high-risk behaviors of their close friends. Nonetheless, it seems that these risky behaviors were more or less common among Iranian college students.
HIV/STI Surveillance Research Center, WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, IR Iran.
Yasan
Y
Kazemzadeh
HIV/STI Surveillance Research Center, WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, IR Iran.
Mostafa
M
Shokoohi
Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, IR Iran.
Mohammad Reza
MR
Baneshi
HIV/STI Surveillance Research Center, WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, IR Iran.
Ali Akbar
AA
Haghdoost
College Student; Dangerous Behavior; Drug Abuse; Sexual Behavior