Nasal microbiota dominated by Moraxella spp. is associated with respiratory health in the elderly population: a case control study

Table 2 Mean relative abundance of Moraxella spp. per population group

Population group	All ages		< 65 years		≥ 65 years
Population group	Mean ± SD (%)	Range (%)	Mean ± SD (%)	Range (%)	Mean ± SD (%)	Range (%)
Controls and patients	12 ± 26	0–100	9 ± 23	0–100	15 ± 29	0–100
Controls	13 ± 28	0–100	7 ± 20*	0–99	25 ± 37 //**	0–100
Patients	10 ± 24	0–100	12 ± 27	0–100	8 ± 20**	0–81
Patients with URTI	15 ± 29	0–100	14 ± 29	0–100	15 ± 30	0–81
Patients with LRTI	6 ± 18	0–100	8 ± 23	0–100	6 ± 15***	0–67

Abbreviations: LRTI Lower respiratory tract infection, SD Standard deviation, URTI Upper respiratory tract infection. Statistically significant differences between groups was calculated using the Mann-Whitney U test. *P = 0.003. **P = 0.018. ***P = 0.008

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