Table 2.

Comparison of mean Legionella concentration between buildings.

Legionella Species Isolated	Building Comparisons	Kruskal–Wallis Test p-Values	Type of Comparison	Mann–Whitney Test p-Values
Total Legionella	A ≠ B	2 × 10−11	A > B	3.26 × 10−12 *
	A ≠ C	6.32 × 10−3	A > C	3.16 × 10−3 *
	B ≠ C	2.20 × 10−4	B < C	7.45 × 10−5 *
L. pneumophila (SG1)	A ≠ B	2.60 × 10−5	A > B	4.36 × 10−6 *
	A ≠ C	0.535
	B ≠ C	2.00 × 10−3	B < C	6.71 × 10−4 *
Non-pneumophila Legionella species	A ≠ B	5.10 × 10−10	A > B	8.56 × 10−11 *
	A ≠ C	1.60 × 10−3	A > C	5.27 × 10−4 *
	B ≠ C	8.50 × 10−3	B < C	4.27 × 10−3 *

* p ≤ 0.05.