Study on the Relationship between Manganese Concentrations in Rural Drinking Water and Incidence and Mortality Caused by Cancer in Huai’an City

Table 5

The correlation analysis between the Mn concentration and cancer incidence rate and mortality rate.

Variable	Incidence		Mortality
	Periods
High flow period	−0.12	0.68	−0.22	0.45
Low flow period	0.71	0.01	0.67	0.01
Sources
Surface water	−0.14	0.62	−0.21	0.47
Shallow groundwater	0.47	0.09	0.34	0.24
Deep groundwater	0.21	0.47	0.40	0.16
All	0.20	0.21	0.17	0.27