Table 4. Incidence Rate Ratio (IRR), 95% Confidence Interval and p values for Anophelinae species identify-group, for three-month survey multivariate two level negative binomial regression.

Independent Variable			Multivariate Two-level Negative Binomial
			Anophelinae species (L1)		Anophelinae species (L2, L3, L4)		Ny. darlingi (L2, L3, L4)
			IRR (95% C.I.)	p	IRR (95% C.I.)	p	IRR (95% C.I.)	p
Turbidity (discrete value)			.99 (.98–1.00)	0.087	.99 (.98–1.01)	0.216	$\text{1.01(1.00}–\text{1.01)}$	$\text{0.045}$
Shading (continual value)			$\text{.95(.92}–\text{.98)}$	$\text{0.003}$	$\text{.97(.94}–\text{.99)}$	$\text{0.041}$	$\text{.95(.92}–\text{.99)}$	$\text{0.020}$
Physical-Chemistry (categorical values)	pH	>6	1		1		1
		6.4	.18 (.03–1.06)	0.059	$\text{.08(.025}–\text{.24)}$	$\text{0.000}$	.28 (.06–1.37)	0.118
		6.6	.71 (.06–8.19)	0.782	.68 (.04–10.58)	0.781	.84 (.12–5.62)	0.856
		6.8	6.95 (.35–136.97)	0.202	4.73 (.49–45.68)	0.179	.53 (.04–7.78)	0.645
		7	.34 (.02–6.38)	0.473	.27 (.03–2.73)	0.268	*	$\text{0.000}$
		7.2	*	$\text{0.000}$	*	$\text{0.000}$	*	$\text{0.000}$
		7.6	*	$\text{0.000}$	*	$\text{0.000}$	*	$\text{0.000}$
	nitrates (mg/L)	0	1		1		1
		10	1.13 (.43–2.93)	0.804	1.12 (.46–2.72)	0.796	.74 (.27–2.07)	0.574
		25	.79 (.06–9.86)	0.861	.91 (.15–5.43)	0.915	.74 (.08–7.16)	0.794
		40	.68 (.18–2.62)	0.577	.30 (.09–1.04)	0.057	*	$\text{0.000}$
	carbonated hardness (KH)	0	1		1		1
		1.5	1.39 (.75–2.58)	0.287	1.38 (.78–2.44)	0.272	.85 (.57–1.26)	0.423
		3	$\text{.33(.14}–\text{.75)}$	$\text{0.008}$	.39 (.18–1.21)	0.103	.24 (.09-.63)	$\text{0.003}$
		4.5	$\text{.01(.01}–\text{.52)}$	$\text{0.020}$	*	$\text{0.000}$	.13 (.01–1.88)	0.135
		6	$\text{.03(.02}–\text{.38)}$	$\text{0.006}$	*	$\text{0.000}$	.37 (.08–1.71)	0.203
		8	$\text{.15(.05}–\text{.46)}$	$\text{0.001}$	$\text{.25(.07}–\text{.86)}$	$\text{0.027}$	3.87 (.99–15.17)	0.052
		15	$\text{.04(.02}–\text{.51)}$	$\text{0.013}$	*	$\text{0.000}$	.34 (.03–4.23)	0.401
	dissolved chlorine (mg/L)	0	1				1
		0.8	1.67 (.63–4.37)	0.299			1.34 (.64–2.78)	0.435
		1.5	$\text{4.23(1.58}–\text{11.36)}$	$\text{0.004}$			$\text{3.41(1.51}–\text{7.68)}$	$\text{0.003}$

Statistically significant values at the 0.05 level are highlighted.

*IRR value omitted due low decimal number (10⁻¹⁰).