Acute health effects associated with satellite-determined cyanobacterial blooms in a drinking water source in Massachusetts

Table 6 The association between cyanobacteria concentration (maximum estimate from five pixels) and the cases of dermal illnesses (sample size = 268); p represents the p-value

Lag (day)	Category of cyanobacteria cells^a	Regression coefficient	95% Confidence Interval		P
0	1	Reference
	2	−0.73	−2.36	0.89	0.376
	3	−0.62	−2.38	1.14	0.493
1	1	Reference
	2	−1.35	−2.74	0.05	0.059
	3	−0.90	−2.41	0.62	0.247
2	1	Reference
	2	−0.09	−1.68	1.51	0.914
	3	−0.85	−2.57	0.88	0.337
3	1	Reference
	2	−0.77	−2.36	0.82	0.344
	3	0.10	−1.62	1.81	0.913
4	1	Reference
	2	−1.27	−2.69	0.14	0.078
	3	−0.30	−1.84	1.24	0.707
5	1	Reference
	2	0.19	−1.28	1.67	0.799
	3	−0.59	−2.19	1.01	0.471

^aCategory 1: <=10,000 cell/mL; Category 2: above 10,000 cell/mL but below or equal to 109,468 cell/mL; and Category 3: > 109,468 cell/mL

ISSN: 1476-069X