. 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 3.

Relation between floor type and log₁₀ E. coli CFU per 900 cm² by sanitation type

	Improved Sanitation Type² (n=64)	Unimproved Sanitation Type³ (n=62)

Floor Type¹:
Unimproved	REF (n=31)	REF (n=51)
Improved	−1.17 (−1.68, −0.66)^†† (n=32)	−0.60 (−1.03, −0.17)^** (n=11)

Improved floor type is classified as either cement or wood and unimproved as dirt.

Among homes with improved sanitation, Beta 0 for dirt floors = 3.90 log₁₀ E. coli CFU/900 cm² versus 2.74 log₁₀ E. coli CFU/900 cm² for cement or wood floors

Among homes with unimproved sanitation, Beta 0 for dirt floors = 4.12 log₁₀ E. coli CFU/900 cm² versus 3.52 log₁₀ E. coli CFU/900 cm² for cement or wood floors

^**

Significance at the p<0.01 level

^††

Significant difference at the p<0.0001 level