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Table 3 Association between nasopharyngeal microbiota profiles and variables under study

From: The upper respiratory tract microbiota of healthy adults is affected by Streptococcus pneumoniae carriage, smoking habits, and contact with children

Characteristics

Microbiota profiles

 

Bacillus-Streptococcus

N = 80

Streptococcus-Pseudomonas

N = 20

Streptococcus-Acinetobacter

N = 22

Corynebacterium-Moraxella

N = 27

Pseudomonas-Corynebacterium

N = 17

 

n (%)

n (%)

ORadj (95% CI)

n (%)

ORadj (95% CI)

n (%)

ORadj (95% CI)

n (%)

ORadj (95% CI)

Pneumococcal carrier, yes

21 (26.3)

3 (18.7)

0.26 (0.04–1.21)

3 (18.7)

0.22 (0.03–1.18)

5 (18.5)

0.71 (0.04–10.59)

1 (5.8)

NA

Age, > 37 years

43 (53.7)

9 (20.0)

0.64 (0.14–2.62)

9 (20.0)

0.58 (0.15–2.06)

7 (25.9)

0.68 (0.10–3.89)

8 (47.1)

1.08 (0.12–10.15)

Gender, male

22 (27.5)

6 (37.5)

1.19 (0.35–3.77)

6 (37.5)

0.74 (0.21–2.40)

26 (96.3)

226.97 (25.16–679.59)

14 (82.6)

12.52 (1.51–310.27)

Children, yes

41 (52.2)

7 (43.7)

4.70 (1.04–25.82)

7 (43.7)

0.60 (0.15–2.39)

7 (25.9)

0.24 (0.02–1.99)

10 (58.8)

15.59 (1.83–376.07)

Smoker, yes

39 (48.7)

7 (43.7)

0.56 (0.16–1.81)

7 (43.7)

0.41 (0.12–1.23)

11 (40.7)

0.65 (0.12–3.26)

4 (23.5)

0.13 (0.02–0.72)

Season

 Spring

28 (35.0)

12 (75.0)

Ref

12 (75.0)

Ref

3 (11.1)

Ref

0 (0.0)

Ref

 Summer

22 (27.5)

8 (50.0)

3.54 (0.94–15.86)

8 (50.0)

0.78 (0.23–2.53)

2 (7.4)

0.50 (0.04–4.75)

4 (23.5)

NA

 Autumn

11 (13.7)

0 (0.0)

2.55 (0.38–16.32)

0 (0.0)

NA

2 (7.4)

0.71 (0.06–7.38)

12 (70.1)

NA

 Winter

19 (23.8)

2 (12.5)

1.11 (0.21–5.76)

2 (12.5)

0.18 (0.02–0.85)

20 (74.1)

28.1 (4.38–307.16)

1 (5.9)

NA

  1. Ref, variable used as reference. NA, nonadmissible as there are no data in the reference. Bold indicates statistically significant results. The Bacillus-Streptococcus profile was the most frequent and thus was used as a reference against which the other profiles were compared