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. 2019 Dec 16;14(12):e0221193. doi: 10.1371/journal.pone.0221193

Table 3. Comparisons between mean log10 MPN E. coli concentrations in environmental samples from low-income, high-income, and floating neighborhoods in Dhaka city, 2017.

Neighborhoods Latrine surface swabb Soild Drain watera Bathing watera Municipal drinking watera Non-municipal watera Surface watera Producec Street foodd Floodwater a
Mean log10 MPN E.coliconcentration (SD)
Low-income* (N = 40) 0.22 (0.72) 2.55 (1.34) 7.11 (0.86) 1.92 (1.32) 1.55 (1.73) 0.81 (1.19) 6.21 (1.01) 3.10 (1.13) 1.62 (1.11) 4.86 (0.88)
High-income (N = 40) 0.07 (0.63) 1.63 (1.16) 6.95 (0.84) 0.94 (1.23) 1.07 (1.41) 0.18 (0.60) 4.29 (1.01) 3.15 (1.37) 1.91 (1.21) 4.38 (0.98)
Floating (N = 20) 0.42 (0.91) 3.09 (0.79) 6.46 (1.11) 0.99 (1.24) 0.64 (1.30) 0.26 (0.73) 5.40 (1.32) 3.45 (1.49) 1.92 (1.28) 4.51 (1.28)
Mean log10 MPN E. coli concentration differences between neighborhoods (95% CI)
Low-income vs. high-income 0.15
(-0.17, 0.48)
0.91
(0.39, 1.43)§
0.16
(-0.25, 0.56)
0.98
(0.41, 1.54)§
0.48
(-0.20, 1.16)
0.64
(0.24, 1.04)§
1.92
(1.44,2.40)§
-0.04
(-0.65, 0.56)
-0.29
(-0.81, 0.24)
0.48
(0.03, 0.92)§
Low-income vs. floating -0.19
(-0.59, 0.20)
-0.54
(-1.18, 0.95)
0.65
(0.15, 1.14)§
0.94
(0.25, 1.63)§
0.91
(0.07, 1.73)§
0.55
(0.06, 1.04)§
0.81
(0.22,0 .40)§
-0.35
(-1.09, 0.40)
-0.29
(-0.94, 0.34)
0.35
(-0.20, 0.89)
Floating vs. high-income 0.35
(-0.05, 0.75)
1.46
(0.82, 2.10)§
-0.49
(-0.98, -0.00)
0.03
(-0.65,0.72)
-0.43
(-1.26, 0.40)
0.08
(- 0.41, 0.57)
1.10
(0.52, 1.69)§
0.30
(-0.44, 1.04)
0.01
(-0.64, 0.65)
0.13
(-0.42, 0.67)

*Low-income neighborhoods: Kalshi, Shampur, Badda, and Hazaribagh

High-income neighborhoods: Gulshan, Dhanmondi, Motijhil, and Uttarkhan

Floating neighborhoods: Gabtoli and Kamalapur neighborhoods

§ mean differences were significantly different between the two comparison groups

aAll water samples including drains were reported as MPN of E.coli/100 mL

bLatrine swabs were reported as MPN of E. coli/swab

cProduce were reported as MPN of E. coli/single serving

dStreet food samples were reported as MPN of E. coli/gram.