Table 1 Analysis of risk factor of onychomadesis in Primary Class #2 of Kindergarten H, Hubei province, 2017
Factor: Suffered from HFMD in the past two months | No. of cases | Overall No. | Attack rate (%) | RR (95% CI) |
|---|---|---|---|---|
Yes | 9 | 10 | 90.0 | 3.0 (1.5–6.0) |
No | 6 | 20 | 30.0 | Ref. |