Table 3. Linear regression of the association between leptospirosis cases and variations in rainfall, according to seasonal period. Santa Catarina, Brazil, 2005-2015.
| Periods | Cases | Rate | r | R | beta | MPV (%) | Tendency |
|---|---|---|---|---|---|---|---|
| Jan-Dec | 5,274 | 7.03 | 0.81 | 0.65 | 51.98 | 10.31 | Increase |
| Apr-Set | 1,620 | 4.32 | 0.60 | 0.36 | -19.65 | -3.05 | Decrease |
| Oct-Mar | 3,654 | 9.74 | 0.83 | 0.69 | 95.77 | 25.09 | Increase |
Rate: Leptospirosis cases/population of 2010 every 100,000 inhabitants; r = intraclass correlation; R2 = coefficient of determination; MPV (%): monthly percentage variation; Apr-Set = April to September; Oct-Mar = October to March; Jan-Dec = January to December