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Table 3 HBsAg-positive cases and its distribution by age, race/ethnicity and nativity within each age group in the total 104,734 estimated cases in the San Francisco Bay area

From: Racial/ethnic- and county-specific prevalence of chronic hepatitis B and its burden in California

Age Group (Years) API Black Hispanic White Total
Foreign-Born US-Born Foreign-Born US-Born
0–19 889 (34.1%) 781 (30.0%) 435 (16.7%) 36 (1.38%) 204 (7.83%) 262 (10.0%) 2607
20–29 8059 (72.6%) 1497 (13.5%) 394 (3.55%) 69 (0.62%) 589 (5.30%) 498 (4.48%) 11,106
30–39 22,106 (90.5%) 777 (3.18%) 437 (1.79%) 73 (0.30%) 523 (2.14%) 520 (2.13%) 24,436
40–49 22,512 (87.8%) 540 (2.11%) 289 (1.13%) 68 (0.27%) 1724 (6.73%) 494 (1.93%) 25,627
50–59 16,399 (85.8%) 450 (2.35%) 386 (2.02%) 66 (0.35%) 1336 (6.99%) 483 (2.53%) 19,120
60–69 10,878 (84.1%) 377 (2.91%) 291 (2.25%) 50 (0.39%) 976 (7.54%) 368 (2.84%) 12,940
70–79 5077 (83.0%) 154 (2.52%) 151 (2.47%) 26 (0.43%) 515 (8.42%) 194 (3.17%) 6117
80+ 2068 (74.4%) 137 (4.93%) 99 (3.56%) 17 (0.61%) 333 (12.0%) 127 (4.57%) 2781
Total 87,988 (84.0%) 4713 (4.50%) 2482 (2.37%) 405 (0.39%) 6200 (5.92%) 2946 (2.81%) 104,734 (100%)