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Table 1 Cohort characteristics at recruitment

From: The Edinburgh Addiction Cohort: recruitment and follow-up of a primary care based sample of injection drug users and non drug-injecting controls

Characteristic N   
Male (%) 794   543 (68.4)
Born in Edinburgh (%) 794   530 (66.7)
Mean age (SD, min-max) at first injection 606*   19.9 (5.1, 11-41)
Mean age (SD, min-max) at recruitment 606   26.7 (6.3, 16-52)
Mean years (SD, min-max) first injection to recruitment 606   6.9 (5.7, 0-28)
Recruited within 5 years of injection onset (%) 606   306 (50.5)
  1. * Only 606 cohort members had information on age of first injection
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