Table. Demographics and clinical severity grades for patients with CV-A6–associated HFMD, Vietnam, 2011–2015* .
| Demographics | Total, n = 510 | 2011–2012, n = 76 | 2013–2015, n = 434 | Group 1, patients with CDS included in analyses, n = 98 | Group 2, patients excluded from phylogenetic analyses, n = 412 |
|---|---|---|---|---|---|
| Sex | |||||
| M | 330 (64.7) | 50 (65.8) | 280 (64.5) | 68 (69.4) | 262 (63.6) |
| F |
180 (35.3) |
26 (34.2) |
154 (35.5) |
30 (30.6) |
150 (36.4) |
| Age, mo | |||||
| Median | 16.07 | 15.23 | 16.18 | 15.52 | 16.17 |
| IQR |
11.57–22.46 |
9.83–24.74 |
11.85–22.43 |
10.68–24.48 |
11.71–22.41 |
| Highest grade | |||||
| 1 | 188 (36.8) | 0 | 188 (43.3) | 39 (39.8) | 149 (36.1) |
| 2a | 229 (44.9) | 0 | 229 (52.8) | 26 (26.5) | 203 (49.3) |
| 2b1 | 81 (15.9) | 68 (89.5) | 13 (3.0) | 30 (30.6) | 51 (12.4) |
| 2b2 | 5 (1.0) | 2 (2.6) | 3 (0.7) | 1 (1.0) | 4 (1.0) |
| 3 |
7 (1.4) |
6 (7.9) |
1 (0.2) |
2 (2.0) |
5 (1.2) |
| Location | |||||
| HCMC | 327 (64.1) | 54 (71.1) | 273 (62.9) | 57 (58.2) | 270 (65.5) |
| Mekong Delta† | 89 (17.5) | 17 (22.4) | 72 (16.6) | 21 (21.4) | 68 (16.5) |
| Southeast‡ | 88 (17.3) | 5 (6.6) | 83 (19.1) | 20 (20.4) | 68 (16.5) |
| Others§ | 6 (1.1) | 0 | 6 (1.4) | 0 | 6 (1.5) |
*Values are no. (%) patients except as indicated. CV, coxsackievirus; HCMC, Ho Chi Minh City; HFMD, hand, foot and mouth disease; IQR, interquartile range. †Long An, Can Tho, Tien Giang, Kien Giang, Dong Thap, and Hau Giang provinces. ‡Tay Ninh, Dong Nai, Binh Duong, Binh Phuoc, Ba Ria, and Vung Tau provinces. §Binh Thuan (n = 2), Hai Duong (n = 1), Quang Ngai (n = 1), Khanh Hoa (n = 1), and Thanh Hoa (n = 1).