Methods Case-control study where treatment error cases were defined as any patient 15e65 years of age, diagnosed with gonorrhoea in 2010, who did not receive ceftriaxone 125 mg or 250 mg IM or other approved cephalosporin regimen, or azithromycin 2 g PO. Two controls were randomly selected from patients who received correct treatment, matched to cases in regard to age, sex, and month of diagnosis. Data regarding exposures to various provider characteristics were collected from case report

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... provider licensing databases, and direct provider phone calls. Proportions of cases and controls were compared on the basis of provider training, years in practice, specialty, and practice type by c 2 analysis or Fisher's exact test.