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Table 4 Comparison of agreement across different data sources of selected data items

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

Variable Reported at interview
(n = 432)
Noted in primary care records
(n = 432)
Agreement (%)
Ever on OST 398 396 99%
Ever injected* 406 393 97%
Ever referred to specialist drug treatment service 324 387 84%
Ever overdosed and been seen by a doctor 214 152 71%
Ever seen a doctor regarding alcohol problems 72 71 99%
Current smoker 403 281 70%
Currently medically unfit for work 300 324 93%
  1. * See text for discussion
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