Second National Communications 34 Table 3. Malaria and climate parameters in Pilot sites Climate Change Parameters Albay Bohol Surigao del Norte r* p* r p r p Mean Temperature (°C) .161 .378 -.032 .863 -.279 .121 Relative Humidity (%) .093 .611 -.202 .268 .408 .020 Rainfall (mm/day) .062 .738 -.100 .584 .098 .593 r* – pearson correlation; p = level of significance Malaria is positively associated with weather humidity in Surigao del Norte. This means that the number of malaria cases is high when weather humidity is high. No significant association was found in Albay and Bohol for the three weather parameters. In Surigao del Norte, the number of malaria cases increases when the weather humidity increases. Correlation analysis shows that the number of malaria cases is positively associated with weather humidity (r = .408, p <.05). Graph 3.Quarterly Trend of Malaria Cases and Relative Humidity Surigao, 1993-2000 Relative Hum idity (%) 89 Malaria 20 87 15 85 83 10 81 5 79 000 000 000 000 999 999 999 999 998 998 998 998 997 997 997 997 996 996 996 996 995 995 995 995 994 994 994 994 993 993 993 0 993 77