Table 3.

Comparison of culture method and the in‐house PCR

Total = 200	Legionella spp. (sample ID)‡	Legionella pneumophila (sample ID)
Culture* + and PCR† +	126	117
Culture − and PCR −	66	77
Culture + and PCR −	8 (ID 141, 142, 143, 144, 174, 175, 264, 290)	1 (ID 290)
Culture − and PCR +	0 (no samples)	5 (ID 168,169,170,172,173)

^* Culture describes confirmation on specific agar. + and − describe the final confirmation result.

^† PCR describes confirmation using PCR. + and − describe the final confirmation result.

^‡ For samples with divergent PCR and culture method result, sample IDs are given (for more information, see Table 4).