Table 2.

Rate and relative risk in communities grouped by range of pollutants during summer, rainy season, and winter.

Summer
Range of pollutants	Cases	population	Rate	RR	Communities
> 4.9	650	4633	140.30	5.64	22,23,13,9
2.3–4.9	307	4048	76.33	3.07	6,24,25,18,3
1.3–2.3	277	8380	33.15	1.33	19,2,5,8,20,14,17
< 1.3	214	8607	24.86	1.00	7,21,11,10,12,15,16,4,1
Rainy season
Range of pollutants	Cases	population	Rate	RR	Communities
> 4.9	761	4633	164.26	5.15	22,23,13,9
2.3–4.9	527	8344	63.16	1.98	6,24,25,18,3,19,8,2
1.3–2.3	369	7019	52.57	1.65	10,15,5,14,17,10,7
< 1.3	181	5672	32.91	1.00	21,12,16,11,4,1
Winter
Range of pollutants	Cases	population	Rate	RR	Communities
> 22.7	775	7312	105.99	2.67	13,8,6,2,23
12.0–22.7	400	4240	94.34	2.37	14,7,3,9
4.5 – 12.0	629	10343	61.81	1.53	1,11,5,17,24,18,4,19,25,10,20
< 4.5	150	3773	39.76	1.00	12,16,22,21,15