Table 3: HCV genotype/subtype prevalence among different age groups (years) in total 2,153 HCV RNA-positive patients, stratified in two time periods (2001–2005; 2006–2011).

Number of patients (%)
≤2526–3536–4546–5556–65>65Total of age groups
Genotypes/subtypes2001/052006/112001/052006/112001/052006/112001/052006/112001/052006/112001/052006/112001/052006/11

1b7 (1.1)9 (2.2)34 (5.3)17 (4.1)35 (5.4)36 (8.7)94 (14.5)48 (11.7)234 (36.2)103 (25.0)243 (37.5)199 (48.3)647412
2a/2c6 (2.3)5 (2.2)7 (2.7)12 (5.4)23 (8.9)8 (3.6)25 (9.7)28 (12.5)82 (31.8)46 (20.5)115 (44.6)125 (55.8)258224
313 (16.7)3 (3.7)23 (29.5)21 (25.6)32 (41.0)35 (42.7)8 (10.2)19 (23.2)1 (1.3)2 (2.4)1 (1.3)2 (2.4)7882
41 (1.3)1 (1.7)8 (10.5)3 (5.2)14 (18.4)16 (27.6)18 (23.7)15 (25.9)24 (31.6)9 (15.5)11 (14.5)14 (24.1)7658
1a1 (3.4)3 (4.9)6 (20.7)11 (18.0)12 (41.5)20 (32.8)5 (17.2)17 (27.9)1 (3.4)6 (9.8)4 (13.8)4 (6.6)2961
1*6 (14.6)4 (8.2)11 (26.8)9 (18.4)9 (22.0)6 (12.2)5 (12.2)13 (26.5)10 (24.4)17 (34.7)4149
1a/1b2 (3.2)9 (14.5)23 (37.1)3 (37.5)7 (11.3)3 (37.5)10 (16.2)1 (12.5)11 (17.7)1 (12.5)628
2*1 (2.4)1 (4.2)3 (7.3)6 (25.0)6 (14.6)4 (16.6)8 (19.5)13 (54.2)23 (56.2)2441
52 (100.0)1 (100.0)21

Total (%)30 (2.5)22 (2.4)93 (7.6)68 (7.3)151 (12.4)130 (13.9)172 (14.1)142 (15.2)361 (29.7)188 (20.0)410 (33.7)386 (41.2)1217936

U nsubtypeable.