. 2021 Jul 17;21:215. doi: 10.1186/s12866-021-02275-2

Table 1.

Prevalence of Legionella species in air samples

Sampling site	No. of samples	No. (%) of Legionella-positive samples by qPCR^a	Geometric mean ± SD (log₁₀ copies/m³) in Legionella DNA-positive samples^b
Road	151	114 (75.5) A	1.80 ± 0.52 C
Bathroom	21	15 (71.4) A	1.82 ± 0.50 CD
Indoor site	30	11 (36.7) B	0.88 ± 0.56 D

^aValues with different letters are significantly different (P < 0.05). Data were analyzed by Fisher’s exact test followed by post hoc Holm test.

^bValues with different letters are significantly different (P < 0.05). Data were analyzed by one-way ANOVA followed by Tukey-Kramer post-hoc test for multiple comparisons.