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Results of the joinpoint regression analysis for the crude incidence rates of leptospirosis in Japan
| Period 1 | Period 2 | Entire study period | |||
|---|---|---|---|---|---|
| Regions | Years | APC (95% CI) | Years | APC (95% CI) | Average APC (95% CI) |
| Okinawa | 2006–2021 | 1.6% (−5.9 to 9.6) | 1.6% (−5.9 to 9.6) | ||
| Outside Okinawa | 2006–2016 | 7.2% (1.3 to 13.4)* | 2016–2021 | −17.5% (−31.2 to −1.1)* | −1.8% (−7.8 to 4.6) |
APC = annual percentage change.
statistically significant.
