Table 1 Epidemic start years in Sri Lanka in relation to prevailing ENSO phases between: (a) 1870 and 1927. (b) 1928 and 2000. (c) 1928 and 1980 and (d) 1981 and 2000.
From: Epochal changes in the association between malaria epidemics and El Niño in Sri Lanka
(a) 1870–1927 | |||
|---|---|---|---|
Epidemics | Non-epidemic | Total | |
El Niño | 7 | 9 | 16 |
Non-Niño | 2 | 40 | 42 |
Total | 9 | 49 | 58 |
(b) 1928–2000 | |||
Epidemics | Non-epidemic | Total | |
El Niño | 4 | 14 | 18 |
Non-Niño | 7 | 58 | 65 |
Total | 11 | 72 | 83 |
(c) 1928–1980 | |||
Epidemics | Non-epidemic | Total | |
El Niño | 1 | 11 | 12 |
Non-Niño | 6 | 35 | 41 |
Total | 7 | 46 | 53 |
(d) 1981–2000 | |||
Epidemics | Non-epidemic | Total | |
El Niño | 3 | 3 | 6 |
Non-Niño | 1 | 23 | 24 |
Total | 4 | 26 | 30 |