Table 1 The sociodemographic characteristics of the subjects in the two clusters.

From: A proposal for the reference intervals of the Italian microbiota “scaffold” in healthy adults

 

Cluster 1 (N = 24)

Cluster 2 (N = 124)

p (Cramer’s V)

Gender

Male

12 (50.0%)

57 (46.0%)

0.72 (0.03)

Female

12 (50.0%)

67 (54.0%)

Age

< 18

4 (16.7%)

18 (14.5%)

0.68 (0.08)

18–65

20 (83.3%)

101 (81.5%)

> 65

0 (0.0%)

5 (4.0%)

Body mass index (kg/m2)

< 18.5

4 (16.7%)

18 (14.5%)

1.00 (0.02)

18.5–25

15 (62.5%)

80 (64.5%)

> 25

5 (20.8%)

26 (21.0%)

Physical activity

< 1 h/week

7 (29.2%)

45 (36.3%)

0.04 (0.21)

1–4 h/week

15 (62.5%)

46 (37.1%)

> 4 h/week

2 (8.3%)

33 (26.6%)

Region of residence

North

8 (33.3%)

77 (62.1%)

0.03 (0.22)

Central

13 (54.2%)

37 (29.8%)

South

3 (12.5%)

10 (8.1%)

Type of residence

City

15 (62.5%)

90 (72.6%)

0.33 (0.08)

Countryside

9 (37.5%)

34 (27.4%)

Smoker

Yes

4 (16.7%)

12 (9.7%)

0.38 (0.11)

Ex-smoker

7 (29.2%)

28 (22.6%)

No

13 (54.2%)

84 (67.7%)

Food restrictions

Lactose restriction

 Yes

4 (16.7%)

11 (8.9%)

0.27 (0.10)

 No

20 (83.3%)

113 (91.1%)

Other food restrictions

 Yes

10 (41.7%)

17 (13.7%)

0.003 (0.27)

 No

14 (58.3%)

107 (86.3%)

Diet

Mediterranean

12 (50.0%)

81 (65.3%)

0.29 (0.13)

Vegetarian/Vegan

5 (20.8%)

14 (11.3%)

Other

7 (29.2%)

29 (23.4%)

Breast feeding

Yes

21 (87.5%)

102 (82.3%)

0.58 (0.05)

No

3 (12.5%)

22 (17.7%)

Animals

Yes

14 (58.3%)

55 (44.4%)

0.21 (0.10)

No

10 (41.7%)

69 (55.6%)

Alcohol (last 2 days)

Yes

9 (37.5%)

43 (34.7%)

0.79 (0.02)

No

15 (62.5%)

81 (65.3%)

  1. Significant values are in bold.