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Table 5 Risk and protective factors associated with initiation of crack-cocaine use (n = 479)

From: Factors associated with crack-cocaine early initiation: a Brazilian multicenter study

  P-valuea 95% CI
Did your parents/caregivers really know:
 Where you used to go in your spare time? (12–14 years) (n = 526) 0.043 0.04, 2.50
Between 15 and 17 years of age, how easily could you access:
 Marijuana (n = 561) 0.028 −3.81, −0.22
Between 15 and 17 years of age, how easily could you access:
 Crack-cocaine (n = 559) < 0.001 −7.40, −4.90
During childhood/adolescence, how often did your parents/caregivers:
 Get drunk (n = 519) 0.602 −0.82, 1.42
Between 15 and 17 years of age, how many friends of yours used to:
 Smoke crack-cocaine (n = 555) 0.267 −3.02, 0.83
 Before the age of 15, have you ever threatened someone with a gun? (n = 567) 0.028 −2.57, −0.14
  1. CI Confidence Interval. Significant results (p < 0.05) are bolded
  2. aMultiple linear regression model