Table 1 The demographic characteristics of follow-up cases and lost to follow-up cases in the HBV-infected cohort, China, 2009
| Â | Followed-up [n, (%)] | Lost to follow-up [n, (%)] | Total [n, (%)] | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carrier | CHBa | LCb | HCCc | Carrier | CHB | LC | HCC | Carrier | CHB | LC | HCC | |
Gender | ||||||||||||
 Male | 633 | 318 | 15 | 1 | 184 | 139 | 5 | 1 | 817 | 457 | 20 | 2 |
(53.6) | (55.1) | (62.5) | (50.0) | (49.9) | (53.1) | (100) | (50.0) | (52.7) | (54.5) | (69.0) | (50.0) | |
 Female | 548 | 259 | 9 | 1 | 185 | 123 | 0 | 1 | 733 | 382 | 9 | 2 |
(46.4) | (44.9) | (37.5) | (50.0) | (50.1) | (46.9) | (0.0) | (50.0) | (47.3) | (45.5) | (31.0) | (50.0) | |
Age group | ||||||||||||
 0–19 | 213 | 51 | 2 | 0 | 101 | 44 | 0 | 0 | 314 | 95 | 2 | 0 |
(18.0) | (8.8) | (8.3) | (0.0) | (27.4) | (16.8) | (0.0) | (0.0) | (20.3) | (11.3) | (6.9) | (0.0) | |
 20–39 | 400 | 184 | 4 | 0 | 121 | 84 | 0 | 0 | 521 | 268 | 4 | 0 |
(33.9) | (31.9) | (16.7) | (0.0) | (32.8) | (32.1) | (0.0) | (0.0) | (33.6) | (31.9) | (13.8) | (0.0) | |
 40–49 | 322 | 179 | 8 | 1 | 64 | 67 | 2 | 0 | 386 | 246 | 10 | 1 |
(27.3) | (31.0) | (33.3) | (50.0) | (17.3) | (25.6) | (40.0) | (0.0) | (24.9) | (29.3) | (34.5) | (25.0) | |
 50–62 | 246 | 163 | 10 | 1 | 83 | 67 | 3 | 2 | 329 | 230 | 13 | 3 |
(20.8) | (28.2) | (41.7) | (50.0) | (22.5) | (25.6) | (60.0) | (100.0) | (21.2) | (27.4) | (44.8) | (75.0) | |
Region | ||||||||||||
 East | 569 | 235 | 14 | 2 | 90 | 53 | 2 | 1 | 659 | 288 | 16 | 3 |
(48.2) | (40.7) | (58.3) | (100) | (22.4) | (20.2) | (40.0) | (50.0) | (42.5) | (34.3) | (55.2) | (75.0) | |
 Central | 321 | 225 | 8 | 0 | 144 | 84 | 3 | 1 | 465 | 309 | 11 | 1 |
(27.2) | (39.0) | (33.3) | (0.0) | (39.0) | (32.1) | (60.0) | (50.0) | (30.0) | (36.8) | (37.9) | (25.0) | |
 West | 291 | 117 | 2 | 0 | 135 | 125 | 0 | 0 | 426 | 242 | 2 | 0 |
(24.6) | (20.3) | (8.3) | (0.0) | (36.6) | (47.7) | (0.0) | (0.0) | (27.5) | (28.8) | (6.9) | (0.0) | |
Rural/Urban | ||||||||||||
 Urban | 430 | 249 | 9 | 0 | 154 | 110 | 3 | 0 | 584 | 359 | 12 | 0 |
(36.4) | (43.2) | (37.5) | (0.0) | (41.7) | (42.0) | (60.0) | (0.0) | (37.7) | (42.8) | (41.4) | (0.0) | |
 Rural | 751 | 328 | 15 | 2 | 215 | 152 | 2 | 2 | 966 | 480 | 17 | 4 |
(63.6) | (56.8) | (62.5) | (100) | (58.3) | (58.0) | (40.0) | (100) | (62.3) | (57.2) | (58.6) | (100.0) | |
Total | 1181 | 577 | 24 | 2 | 369 | 262 | 5 | 2 | 1550 | 839 | 29 | 4 |
(100) | (100) | (100) | (100) | (100) | (100) | (100) | (100) | (100) | (100) | (100) | (100) | |