Table 1 Study population characteristics.

From: Faecal miRNA profiles associated with age, sex, BMI, and lifestyle habits in healthy individuals

 

Female (N = 213)

Male (N = 122)

Overall (N = 335)

Age years

Mean ± SD

43.9 ± 14.5

46.1 ± 15.0

44.7 ± 14.7

Median [Min, Max]

44.0 [18.0, 80.0]

48.0 [19.0, 81.0]

45.0 [18.0, 81.0]

Age tertiles (%)

18–37

84 (39.4%)

38 (31.1%)

122 (36.4%)

37–53

66 (31.0%)

45 (36.9%)

111 (33.1%)

53–81

63 (29.6%)

39 (32.0%)

102 (30.5%)

BMI*

Mean ± SD

22.4 ± 3.7

24.5 ± 3.6

23.1 ± 3.8

Median [Min, Max]

21.9 [15.4, 39.9]

24.1 [17.2, 35.8]

22.6 [15.4, 39.9]

Missing (%)

5 (2.3%)

6 (4.9%)

11 (3.3%)

BMI Classes (%)*

Underweight

23 (10.8%)

2 (1.6%)

25 (7.5%)

Normal

145 (68.1%)

70 (57.4%)

215 (64.2%)

Overweight

32 (15.0%)

34 (27.9%)

66 (19.7%)

Obese

8 (3.8%)

10 (8.2%)

18 (5.4%)

Missing

5 (2.3%)

6 (4.9%)

11 (3.2%)

Smoking status (%)

Current smoker

37 (17.4%)

20 (16.4%)

57 (17.0%)

 < 16 cigs/day

28 (13.1%)

13 (10.6%)

41 (12.2%)

 > 16 cigs/day

9 (4.2%)

7 (5.7%)

16 (4.8%)

Former smoker

50 (23.5%)

44 (36.1%)

94 (28.1%)

Never smoker

125 (58.7%)

56 (45.9%)

181 (54.0%)

Missing

1 (0.4%)

2 (1.6%)

3 (0.9%)

Alcohol consumption (%)**

Non drinkers

23 (10.8%)

6 (4.9%)

29 (8.7%)

Low intake drinkers

151 (70.9%)

79 (64.8%)

230 (68.7%)

High intake drinkers

38 (17.8%)

37 (30.3%)

75 (22.4%)

Coffee consumption (%)***

Non drinkers

89 (41.8%)

46 (37.7%)

135 (40.3%)

Low intake drinkers

96 (45.1%)

53 (43.4%)

149 (44.5%)

High intake drinkers

27 (12.7%)

23 (18.9%)

50 (14.9%)

Physical activity (%)

Active

14 (6.6%)

7 (5.7%)

21 (6.3%)

Moderately active

63 (29.6%)

45 (36.9%)

108 (32.2%)

Moderately inactive

72 (33.8%)

42 (34.4%)

114 (34.0%)

Inactive

63 (29.6%)

27 (22.1%)

90 (26.9%)

Missing

1 (0.4%)

1 (0.9%)

2 (0.6%)

Menopausal status (%)

Premenopausal

132 (62.0%)

-

-

Postmenopausal

77 (36.2%)

-

-

Missing

4 (1.8%)

-

-

  1. *BMI was categorized according to the World Health Organization guidelines as underweight (< 18.5 kg/m2), normal weight (18.5–24.9 kg/m2), overweight (25.0–29.9 kg/m2) and obese (30.0–34.9 kg/m2).
  2. **Alcohol consumption was categorized according to the alcohol intake measured in gr/day: non-drinkers (0 gr/day), low intake drinkers (< 24 gr/day for males and < 12 gr/day for females) and high intake drinkers (> 24 gr/day for males and > 12 gr/day for females).
  3. ***Coffee consumption was categorized according to the coffee intake measured in g/day: non-drinkers (0 gr/day), low intake drinkers (1–16 gr/day) and high intake drinkers (> 16 gr/day).
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