. Author manuscript; available in PMC: 2019 Mar 5.

Published in final edited form as: Environ Sci Technol. 2016 Jul 8;50(14):7373–7381. doi: 10.1021/acs.est.6b01283

Table 4.

Adjusted regression model of household characteristics with log₁₀ E. coli CFU per 900 cm² in entrance and kitchen areas (models adjust for time to fetch water, presence of chickens in the household, crowding, maternal education and wall type)

	Entrance Log₁₀ E. coli CFU			Kitchen Log₁₀ E. coli CFU

N	56			56

R-Squared (Adjusted R-squared)	0.392 (0.241)			0.651 (0.564)

	β (SE)	95% CI	p-value	β (SE)	95% CI	p-value

Primary independent variables:

Sanitation Type with Floor Type:
Unimproved with Dirt	REF	REF	REF	REF	REF	REF
Unimproved with Wood	−1.13 (0.92)	(−2.99, 0.74)	0.230	−2.36 (0.75)	(−3.86, −0.86)	0.003
Unimproved with Cement	−0.51 (0.57)	(−1.66, 0.64)	0.372	0.40 (0.52)	(−0.65, 1.45)	0.444
Improved with Dirt	0.45 (0.36)	(−0.28, 1.18)	0.271	0.32 (0.26)	(−0.20, 0.83)	0.222
Improved with Wood	0.25 (0.69)	(−1.14, 1.64)	0.721	−0.74 (0.47)	(−1.68, 0.20)	0.119
Improved with Cement	−0.43 (0.32)	(−1.08, 0.21)	0.183	−1.18 (0.29)	(−1.77, −0.60)	<0.001

Shared Sanitation Facility:
Shared	REF	REF	REF	REF	REF	REF
Unshared	−0.40 (0.31)	(−1.02, 0.22)	0.203	−0.65 (0.25)	(−1.15, −0.16)	0.011

Adjustment covariates:

Time to fetch water in minutes	0.05 (0.02)	(.003, 0.09)	0.038	0.03 (0.02)	(−0.002, 0.07)	0.063

Presence of chickens in HH:
Yes	REF	REF	REF	REF	−−	−−
No	−0.63 (0.24)	(−1.12, −0.15)	0.185	−0.63 (0.24)	(−1.12, −0.15)	0.012

Crowding	−0.06 (0.13)	(−0.32, 0.19)	0.622	−0.17 (0.10)	(−0.37, 0.02)	0.084

Maternal education (years)	−0.10 (0.05)	(−0.19, 0.00)	0.048	−0.08 (0.04)	(−0.15,−0.004)	0.040

Wall type:
Wood	REF	REF	REF	REF	REF	REF
Concrete	−0.11 (0.35)	(−0.81, 0.60)	0.766	−0.33 (0.25)	(−0.84, 0.18)	0.198