. 2020 Sep 28;9:100071. doi: 10.1016/j.wroa.2020.100071

Table 2.

Linear regression results describing variation of indicator concentrations with precipitation and turbidity. Indicator concentrations are log₁₀ units/100 ml, as throughout this paper. The rationale for including time as a covariate in crAssphage and HF183 models is given in Methods.

		crAssphage		HF183		E. coli		Enterococci
		Estimate (std err)	p-value	Estimate (std err)	p-value	Estimate (std err)	p-value	Estimate (std err)	p-value
Parameter	Units	Estimate (std err)	p-value	Estimate (std err)	p-value	Estimate (std err)	p-value	Estimate (std err)	p-value
Intercept	log₁₀ concentration	4.09	<0.001	4.20	<0.001	2.07	<0.001	0.77	0.10
Intercept	log₁₀ concentration	(0.61)		(0.59)		(0.33)		(0.45)
Precipitation	mm	0.09	0.09	0.12	0.03	0.05	0.08	0.05	0.21
Precipitation		(0.05)		(0.05)		(0.03)		(0.04)
Turbidity	log₁₀ NTU	0.00	0.99	0.23	0.47	0.35	0.06	0.93	<0.001
Turbidity		(0.32)		(0.32)		(0.18)		(0.24)
Time	days	−0.07	0.04	−0.10	<0.01	–	–	–	–
Time	days	(0.03)		(0.03)		–		–
n	–	27		27		29		29
Adj. R-squared		0.13		0.30		0.23		0.41