Table 1: Background information.

Background variable% ( )

Age
 Mean = 46
Gender
 Male 59 (69)
 Female 41 (48)
Ethnicity
 White British79 (90)
 White Irish3 (4)
 White other12 (14)
 Other 6 (6)
In employment59 (68)
Transmission mode
 Intravenous drugs77.8 (49)
 Blood transfusion3.2 (2)
 Homosexual sex6.3 (4)
 Heterosexual sex1.6 (1)
 Other8 (7)
 Missing (55)
Genotype
 136.5 (19)
 23.8 (2)
 326.9 (14)
 2, 330.8 (16)
 41.9 (1)
 Missing (66)
SVR
 Achieved 67 (76)
 Not achieved 33 (38)
 No record (4)
Arthritis
 Osteoarthritis5 (6)
 Rheumatoid5 (6)
 Unknown5 (6)
 Other2.5 (3)
Positive for cryoglobulins5.9 (7)
Inflammatory bowel disease5.9 (7)