项目/月份 | 1~3 (32, 33.3%) | 4~6 (18, 18.7%) | 7~9 (11, 11.5%) | 10~12 (35, 36.5%) | 合计(%) |
男 | 15 | 11 | 7 | 19 | 52 (54.2) |
女 | 17 | 7 | 4 | 16 | 44 (45.8) |
>3月龄 | 22 | 14 | 6 | 22 | 64 (66.7) |
≤3月龄 | 10 | 4 | 5 | 13 | 32 (33.3) |
城市 | 7 | 12 | 9 | 10 | 38 (39.6) |
农村 | 25 | 6 | 2 | 25 | 58 (60.4) |
接触史 | 0 | 0 | 0 | 5 | 5 (5.2) |
疫苗接种史 | 12 | 11 | 7 | 23 | 53 (55.2) |