Table 1.

Statistical comparison between Legionella loads detected in every date of sampling.

p-Values	T0 3 July 2013	T1 29 July 2013	T2 25 October 2013	T3 29 January 2014	T4 7 July 2014	T5 11 November 2014	T6 2 February 2015	T7 25 May 2015	T8 26 October 2015	T9 15 February 2016	T10 27 January 2016
T0—3 July 2013	1	0.670	0.790	0.136	0.241	0.003 *	0.003 *	0.012 *	0.003 *	0.003 *	0.033 *
T1—29 July 2013	0.670	1	0.873	0.286	0.456	0.011 *	0.011 *	0.038 *	0.011 *	0.011 *	0.088
T2—25 October 2013	0.790	0.873	1	0.220	0.365	0.007 *	0.007 *	0.025 *	0.007 *	0.007 *	0.062
T3 —29 January 2014	0.136	0.286	0.220	1	0.749	0.136	0.136	0.311	0.136	0.136	0.522
T4 —7 July 2014	0.241	0.456	0.365	0.749	1	0.070	0.070	0.183	0.070	0.070	0.337
T5 —11 November 2014	0.003	0.011	0.007	0.136	0.070	1	1.000	0.631	1.000	1.000	0.394
T6 —2 February 2015	0.003	0.011	0.007	0.136	0.070	1.000	1	0.631	1.000	1.000	0.394
T7 —25 May 2015	0.012	0.038	0.025	0.311	0.183	0.631	0.631	1	0.631	0.631	0.709
T8 —26 October 2015	0.003	0.011	0.007	0.136	0.070	1.000	1.000	0.631	1	1.000	0.394
T9 —15 February 2016	0.003	0.011	0.007	0.136	0.070	1.000	1.000	0.631	1.000	1	0.394
T10 —27 June 2016	0.033	0.088	0.062	0.522	0.337	0.394	0.394	0.709	0.394	0.394	0

(*) Statistical significance (p-value: p < 0.05).