2009 n (%) | 2010 n (%) | 2011 n (%) | 2012 n (%) | 2013 n (%) | 2014 n (%) | 2015 n (%) | Total n (%) | |
---|---|---|---|---|---|---|---|---|
Age group | ||||||||
<6 month | 13 (0.5) | 30 (0.7) | 4 (0.7) | 9 (1.1) | 17 (1.0) | 26 (1.0) | 11 (0.6) | 110 (0.8) |
6–11 month | 120 (4.9) | 564 (12.4) | 38 (6.3) | 36 (4.5) | 247 (14.7) | 172 (6.4) | 163 (9.4) | 1340 (9.3) |
1–3 years | 1468 (60.3) | 2449 (53.7) | 354 (58.7) | 496 (62.6) | 1004 (59.7) | 1457 (54.4) | 1009 (58.4) | 8237 (56.9) |
4–5 years | 602 (24.7) | 1040 (22.8) | 152 (25.2) | 174 (22.0) | 241 (14.3) | 651 (24.3) | 312 (18.1) | 3172 (21.9) |
6–9 years | 184 (7.6) | 352 (7.7) | 40 (6.6) | 51 (6.4) | 127 (7.6) | 281 (10.5) | 148 (8.6) | 1183 (8.2) |
10– 14 years | 39 (1.6) | 98 (2.1) | 10 (1.7) | 20 (2.5) | 40 (2.4) | 73 (2.7) | 66 (3.8) | 346 (2.4) |
≥15 years | 10 (0.4) | 28 (0.6) | 5 (0.8) | 6 (0.8) | 5 (0.3) | 20 (0.7) | 18 (1.0) | 92 (0.6) |
Gender | ||||||||
Male | 1542 (63.3) | 2828 (62.0) | 371 (61.5) | 495 (62.5) | 1002 (59.6) | 1612 (60.1) | 1056 (61.1) | 8906 (61.5) |
Female | 894 (36.7) | 1733 (38.0) | 232 (38.5) | 297 (37.5) | 679 (40.4) | 1068 (39.9) | 671 (38.9) | 5574 (38.5) |
Gender ratio | 1.72:1 | 1.63:1 | 1.60:1 | 1.67:1 | 1.48:1 | 1.51:1 | 1.57:1 | 1.60:1 |
Case definition | ||||||||
Probable cases | 2339 (96.0) | 4469 (98.0) | 568 (94.2) | 633 (79.9) | 1329 (79.1) | 1851 (69.1) | 1121 (64.9) | 1,2310 (85.0) |
Confirmed casesb | 97 (4.0) | 92 (2.0) | 35 (5.8) | 159 (20.1) | 352 (20.9) | 829 (30.9) | 606 (35.1) | 2170 (15.0) |
Etiologya | ||||||||
EV-A71 | 56 (57.7) | 18 (19.6) | 27 (77.1) | 149 (93.7) | 224 (63.6) | 108 (13.0) | 248 (40.9) | 830 (38.2) |
CV-A16 | 41 (42.3) | 74 (80.4) | 8 (22.9) | 10 (6.3) | 65 (18.5) | 588 (70.9) | 138 (22.8) | 924 (42.6) |
Other EV | 0 (0.0)a | 0 (0.0)a | 0 (0.0)a | 0 (0.0)a | 63 (17.9) | 133 (16.0) | 220 (36.3) | 416 (19.2) |
Total | 2436 (100.0) | 4561 (100.0) | 603 (100.0) | 792 (100.0) | 1681 (100.0) | 2680 (100.0) | 1727 (100.0) | 14,480 (100.0) |