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Table 1 Baseline demographic and outcome measures of participants

From: Efficacy of a curcumin extract (Curcugen™) on gastrointestinal symptoms and intestinal microbiota in adults with self-reported digestive complaints: a randomised, double-blind, placebo-controlled study

 

Placebo

Curcumin

p-value

 

n = 40

n = 39

 

Age

 Mean

43.20

40.69

.325 a

 SE

1.74

1.84

BMI

 Mean

24.80

25.53

.404 a

 SE

0.62

0.61

Gender (n)

 Male

6 (15%)

4 (10%)

.869b

 Female

34 (85%)

35 (90%)

Marital Status (n)

 Single

10 (25%)

15 (91%)

.198 b

 Married

30 (75%)

24 (38%)

Educational Level (n)

 Secondary

16 (27%)

22 (56%)

.137 b

 Tertiary

15 (63%)

14 (36%)

 Post-graduate

9 (10%)

8 (12%)

Exercise Level (n)

 Never/Rarely

7 (18%)

5 (13%)

.947 b

 1 to 2 times a week

8 (20%)

8 (21%)

 3 to 5 times a week

15 (37%)

38 (8%)

 6+ times a week

10 (25%)

28 (18%)

Duration of gastrointestinal problems (n)

 <  6 months

2 (5%)

1 (3%)

.148 a

 6 to 12 months

1 (10%)

0 (0%)

 1–2 years

2 (2%)

4 (10%)

 2 to 5 years

3 (8%)

9 (23%)

 5 to 10 years

14 (35%)

6 (15%)

 10+ years

18 (45%)

18 (46%)

GSRS: Total score

 Mean

2.63

2.89

.106 a

 SE

0.10

0.12

GSRS: Abdominal pain

 Mean

2.50

2.5

.998 a

 SE

0.14

0.13

GSRS: Reflux

 Mean

2.06

2.14

.764 a

 SE

0.18

0.19

GSRS: Diarrhoea

 Mean

2.71

2.65

.872 a

 SE

0.24

0.24

GSRS: Indigestion

 Mean

3.15

3.52

.118 a

 SE

0.15

0.18

GSRS: Constipation

 Mean

2.44

3.06

.059 a

 SE

0.20

0.26

DASS-21: Total score

 Mean

22.35

23.23

.830 a

 SE

2.7

3.08

DASS-21: Depression

 Mean

6.15

5.74

.798 a

 SE

1.02

1.21

DASS-21: Anxiety

 Mean

5.00

5.64

.598 a

 SE

0.83

0.88

DASS-21: Stress

 Mean

11.2

11.85

.730 a

 SE

1.22

1.41

SF-36: Physical functioning

 Mean

88.38

88.67

.605 a

 SE

2.27

2.39

SF-36: Role limitations due to physical health

 Mean

70.63

70.51

.990 a

 SE

6.26

6.55

SF-36: Role limitations due to emotional problems

 Mean

60.8

69.28

.306 a

 SE

5.97

5.67

SF-36: Energy/fatigue

 Mean

42.38

43.85

.748 a

 SE

3.5

2.92

SF-36: Emotional wellbeing

 Mean

68.4

73.23

.169 a

 SE

2.38

2.54

SF-36: Social functioning

 Mean

75.5

73.9

.750 a

 SE

3.83

3.2

SF-36: General health

 Mean

59.25

65.26

.206 a

 SE

3.77

2.79

SF-36: Pain

 Mean

74.55

63.36

.017 a

 SE

2.95

3.47

SIBO

n = 39

n = 39

 

Elevated hydrogen (n)

 Negative

12 (31%)

13 (39%)

.115 b

 Borderline

7 (18%)

4 (12%)

 Positive

20 (51%)

16 (48%)

Elevated methane (n)

 Negative

16 (41%)

18 (46%)

.446 b

 Borderline

5 (13%)

8 (21%)

 Positive

18 (46%)

13 (33%)

Elevated combined (n)

 Negative

3 (8%)

8 (21%)

.256 b

 Borderline

8 (21%)

6 (15%)

 Positive

28 (72%)

25 (64%)

  1. a = Independent samples t-test; b = Chi-square Test
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