Table 1 Characteristics of hepatitis B cases and incidence in the whole population and different subgroups from 2005 to 2009 in Guangzhou
Category | Cumulative cases (Proportion, %)b | Average crude incidence (Age-standardized incidence)c | ||||
|---|---|---|---|---|---|---|
Whole population | Catch-up population | Study population | Whole population | Catch-up population | Study population | |
Overall | 322,537 | 58,833 | 58,204 | 161.74 (169.90) | 106.09 (108.01) | 114.96 (117.30) |
Subgroup | ||||||
Sexa | ||||||
 Male | 222,013 (68.83) | 38,095 (64.75) | 37,654 (64.69) | 212.20 (221.9) | 129.61 (131.26) | 140.77 (142.87) |
 Female | 100,523 (31.17) | 20,737 (35.25) | 20,549 (35.31) | 106.04 (112.44) | 79.57 (81.72) | 86.04 (88.58) |
Clinical type | ||||||
 Acute | 10,751 (3.33) | 3,136 (5.33) | 3,102 (5.33) | 5.39 (5.38) | 5.66 (5.64) | 6.13 (6.13) |
 Chronic | 287,423 (89.11) | 48,656 (82.70) | 48,160 (82.74) | 144.13 (152.50) | 87.74 (89.79) | 95.12 (97.56) |
 Unclassified | 24,363 (7.55) | 7,041 (11.97) | 6,942 (11.93) | 12.22 (12.02) | 12.7 (12.58) | 13.71 (13.61) |