Table 4: Availability of specialists and services at study centres, as reported by principal investigators (n = 16) at each study centre
Access to specialist or serviceProportion of centresCorrelation with median centre rank*
Qualitative HCV PCR0.941.00
HCV viral load measurement1.00NA
HCV genotyping1.00NA
Transient elastography0.690.56
Liver biopsy1.00NA
Hepatologist1.00NA
Nephrologist0.940.60
Psychiatrist or psychologist0.890.07
Social worker0.880.29
Clinical pharmacist0.81–0.13
Dedicated HCV nurse0.690.02
Industry-sponsored nurse or social worker0.360.04
Dedicated HCV social worker0.25–0.15
Outreach team for patients with HCV0.38–0.20
Addiction services0.690.44
Methadone or buprenorphine and naloxone program0.750.19

Note: HCV = hepatitis C virus, NA = not applicable (correlation could not be calculated), PCR = polymerase chain reaction. *Rank biserial correlation with the median rank success of each centre in starting patients on HCV treatment, such that a positive correlation implies patients are more likely to start treatment.