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Table 3 Addictive behaviors studied

From: Relationship between interpersonal trauma exposure and addictive behaviors: a systematic review

  N %
Among studies using one variable to assess addictive behaviors
 Alcohol 57 31.5
 Combined measurement of several substances 42 23.2
 Nicotine 14 7.7
 Marijuana 5 2.8
 Cocaine 2 1.1
 Other specific substance 2 1.1
 Food 1 0.6
 Opiates 1 0.6
Among studies using several variables to assess addictive behaviors
 Alcohol + combined measurement of several substances 20 11.0
 Alcohol + nicotine 7 3.9
 Alcohol + nicotine + combined measurement of several substances 6 3.3
 Alcohol + marijuana + combined measurement of several substances 5 2.8
 Alcohol + nicotine + marijuana 5 2.8
 Alcohol + marijuana + cocaine + opiates + prescription medication 2 1.1
 Alcohol + nicotine + marijuana + alcohol + prescription medication 1 0.6
 Alcohol + nicotine + marijuana + combined measurement of several substances 1 0.6
 Alcohol + marijuana 1 0.6
 Alcohol + marijuana + cocaine 1 0.6
 Alcohol + marijuana + cocaine + opiates 1 0.6
 Alcohol + opiates + marijuana + prescription medication + combined measurement of several substances 1 0.6
 Alcohol + prescription medication 1 0.6
 Cocaine + opiates 1 0.6
 Combined measurement of several substances + excessive Internet use 1 0.6
 Marijuana + cocaine + opiates 1 0.6
 Marijuana + cocaine + opiates + combined measurement of several substances 1 0.6
 Marijuana + cocaine + prescription medication + combined measurement of several substances 1 0.6