Difference-in-differences analyses for changes in admissions for ambulatory care sensitive conditions (ACSCs) per 100 000 people in the prefectures declared a state of emergency and other areas
| ACSCs | State of emergency | Other areas | Changes in admission for ACSCs by COVID-19 | P value | ||
| Before COVID-19 | During COVID-19 | Before COVID-19 | During COVID-19 | |||
| Overall | 188.52 | 132.80 | 248.20 | 200.33 | 7.50 (−87.02 to 102.01) | 0.875 |
| Acute | 10.70 | 18.71 | 106.76 | 81.42 | 2.57 (−38.54 to 43.69) | 0.901 |
| Chronic | 106.83 | 78.6 | 135.70 | 92.87 | 0.56 (−47.73 to 48.85) | 0.982 |
| Preventable | 26.80 | 13.41 | 36.9 | 16.47 | 4.14 (−113.09 to 21.37) | 0.634 |