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Table 2 History of overdose

From: Attitudes and knowledge about naloxone and overdose prevention among detained drug users in Ningbo, China

  Total Male Female
Experiencing heroin overdose 37.3% 32.1% 48.0%
Witnessing heroin-overdose 37.4% 35.6% 41.3%
   Past 12 month, none 68.1% 66.7% 70.6%
   Past 12 months, 1 17.0% 15.0% 20.6%
   Past 12 months, 2-4 9.6% 13.3% 2.9%
   Past 12 months, 5-10 2.1% 0 0
   Past 12 months, > 10 1.1 1.7% 5.9%
Knowing someone who died of heroin overdose 39.0% 34.4% 49.4%*
   Past 12 months, none 71.2% 73.2% 67.5%
   Past 12 months, 1 17.1% 19.7% 12.5%
   Past 12 months, 2-4 9.0% 7.0% 12.5%
   Past 12 months, 5-10 0 0 0
   Past 12 months, > 10 2.7% 0 2.7%
The other person present at this last overdose    
Family member 17.9% 16.7% 20.0%
Drug using friends 70.1% 73.8% 64.0%
Non-drug users 7.5% 7.1% 8.0%
Others 4.5% 2.4% 8.0%
Concerned about overdose 65.9% 68.3% 60.5%
Discussing overdose with others 37.2% 33.3% 44.9%
  1. *p < 0.05 a significant difference between male and female participants
  2. **p < 0.01 a significant difference between male and female participants