Multiplex PCR based genotypic characterization of pathogenic vancomycin resistant Enterococcus faecalis recovered from an Indian river along a city landscape

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Table 1 Quantitative enumeration (log transformed) of enterococci collected from sites (n = 5) located on river Gomti in up-to-down-stream fashion

Sampling site	CFU/100 mL water [Median 95 % CI (lower–upper)]	MPN index/100 mLwater 95 % CI (lower–upper)^a	p value^b
Site 1	2.18 (2.16–2.21)	1.11 (0.70–1.58)	<0.0001***
Site 2	3.84 (3.83–3.84)	2.15 (1.78–2.56)
Site 3	4.66 (4.65–4.67)	2.48 (2.00–3.11)
Site 4	4.89 (4.89–4.90)	2.95 (2.48–3.46)
Site 5	5.84 (5.84–5.84)	3.20 (2.78–3.72)
Control^c	ND	ND

ND not detected
*** Statistically significant at alpha < 0.05
^aLower 95 % CI–upper 95 % CI is adopted from Table 9221.IV, Section 9221C. Estimation of bacterial density, APHA (1998); log transformed values shown in the Table 1; See Additional file 1: Table S1 for details
^b p value was calculated using Chi square test for trend, χ² = 1636; df = 1
^cSterile Milli Q water used as control