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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