Table II.
Climatic factors suspected to be linked with meningitis by season
| Season | Tmax (°C) | Tmin (°C) | RHmax (%) | RHmin (%) | Rainfall (mm) | Wind speed (m · s−1) | Visibility (km) |
|---|---|---|---|---|---|---|---|
| Cold | |||||||
| Median (IQR) | 34.1 (4.8) | 17.4 (3.4) | 32 (11) | 10 (4.3) | 0 (0) | 6.4 (2.7) | 5.4 (2.4) |
| Range | 24.6-41.0 | 11.2-29.2 | 13.1-54.0 | 2-22 | 0-0 | 1.4-13.6 | 0.3-7.1 |
| CV (%) | 9.6 | 14.4 | 23.1 | 32.7 | NC | 31.0 | 35.6 |
| Very hot | |||||||
| Median (IQR) | 37.5 (4.4) | 26.5 (5.6) | 33 (29) | 12 (14) | 0 (0) | 6.4 (2.8) | 5.4 (0.9) |
| Range | 25.4-46.2 | 15.5-33.0 | 7.34-97.0 | 2-88 | 0-19 | 2.2-12.9 | 0.5-7.1 |
| CV (%) | 7.0 | 14.3 | 46.8 | 66.3 | 13.6 | 30.6 | 35.4 |
| Rainy | |||||||
| Median (IQR) | 35 (3.5) | 25 (3.5) | 86 (16) | 46 (17) | 0 (0.2) | 6.1 (2.8) | 6.5 (0.6) |
| Range | 23.7-43.5 | 18.0-33.5 | 32-100 | 10-80 | 0-7.3 | 1.8-13.6 | 3.6-8.5 |
| CV (%) | 9.3 | 9.8 | 13.8 | 25.8 | 2.5 | 31.2 | 8.0 |
| Hot | |||||||
| Median (IQR) | 37.5 (3.5) | 22 (5.6) | 47 (27.2) | 15 (11) | 0 (0) | 4.5 (2.0) | 6.0 (2.6) |
| Range | 27.5-41.2 | 11.6-29.0 | 20.6-100 | 5-59.2 | 0-6.2 | 1.6-9.8 | 0.9-8.0 |
| CV (%) | 6.8 | 15.4 | 32.1 | 54.6 | 10.0 | 30.5 | 20.6 |
CV, Coefficient of variation; IQR, interquartile range; RH, relative humidity; T, temperature.