Table 1 Selected characteristics of participants in three studies of HCV infection in San Francisco (N = 460)

Total N

202

128

130

460

Gender N(%)¶

Male

145 (72.5%)

88 (68.8%)

85 (65.4%)

318 (69.4%)

Female

55 (27.5%)

40 (31.2%)

45 (34.6%)

140 (30.6%)

Age (in years)#

Median

47.0

22.3

45.0

43.0

IQR

42.3-50.0

19.9-25.0

40.8-49.0

28.0 - 48.0

Years of recruitment

1987-1998

2000-2007

2000-2007

1987-2007

HCV Genotypes* ¶

95 (77.9%)

326 (72.4%)

Type 1

161 (80.5%)

70 (54.7%)

10 (8.2%)

50 (11.1%)

Type 2

22 (11.0%)

18 (14.1%)

15 (12.3%)

69 (15.3%)

Type 3

15 (7.5%)

39 (30.5%)

2 (1.6%)

5 (11.1%)

Type 4

2 (1.0%)

1 (0.8%)

122 (100%)

#***

#*

#**

HCV Genotypes*¶

1

15 (7.4%)

32 (25.0%)

62 (47.7%)

110 (23.9%)

1a

76 (37.6%)

26 (20.3%)

3 (2.3%)

105 (22.8%)

1a/1b

5 (2.5%)

1 (0.8%)

4 (3.1%)

10 (2.2%)

1b

65 (32.2%)

11 (8.6%)

26 (20.0%)

101 (22.0%)

1/2

1 (0.5%)

0 (0.0%)

0 (0.0%)

1 (0.2%)

2

1 (5.0%)

5 (3.9%)

0 (0%)

5 (1.1%)

2a

0 (0.0%)

1 (0.8%)

0 (0.0%)

1 (0.2%)

2a/2c

4 (2.0%)

6 (4.7%)

2 (1.5%)

12 (2.6%)

2b

17 (8.4%)

6 (4.7%)

3 (2.3%)

26 (5.7%)

2b/3a

1 (0.5%)

0 (0.0%)

0 (0.0%)

1 (0.2%)

3a

15 (7.4%)

39 (30.5%)

15 (11.5%)

69 (15.0%)

4

1 (0.5%)

0 (0.0%)

1 (0.8%)

4(0.4%)

4c/4d

1 (0.5%)

1 (0.8%)

1 (0.8%)

3(0.7%)

Undetermined

0 (0.0%)

0 (0.0%)

8 (6.2%)

8 (1.7%)**

Ethnicity¶

Caucasian

55 (27.5%)

97 (75.8%)

54 (41.5%)

205 (44.8%)

African Amer.

124 (62.0%)

2 (1.6%)

54 (41.5%)

180 (39.3%)

Latino

10 (5.0%)

7 (5.5%)

9 (6.9%)

26 (5.7%)

Asian

1 (0.5%)

1 (0.8%)

3 (2.3%)

5 (1.1%)

Other

10 (5.0%)

21 (16.4%)

10 (7.7%)

42 (9.2%)**

Education (1)¶

< High School

56 (28.0%)

67 (52.8%)

34 (26.2%)

157 (34.4%)

>= High school

144 (72.0%)

60 (47.2%)

96 (73.8%)

300 (65.6%)**