Estimated monthly number of Kawasaki disease patients aged 0–4 years and difference-in-difference value between 2020 and 2016–2019
| Estimated monthly no of cases per 100 000 children aged 0–4 years | Difference-in-difference value in 2020 vs 2016–2019 (95% CI) | |||
| 2016–2019 | 2020 | |||
| January–March | 30.2 | 25.6 | ||
| April–June | 22.8 | 13.8 | −4.4 | (−16.6 to 7.8) |
| July–September | 26.6 | 14.0 | −8.0 | (−20.2 to 4.2) |
| October–December | 29.6 | 9.2 | −15.8 | (−28.0 to –3.5) |