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Table 1 Pilot study statistics

From: Water-soluble polyphenol-rich clove extract lowers pre- and post-prandial blood glucose levels in healthy and prediabetic volunteers: an open label pilot study

Comparison

Δ Plasma Glucose (mg/dL) [Initial – Day]

95% Confidence Interval

P Value

Group I Preprandial

 Initial vs. Day 12

1.286

− 5.752 - 8.324

0.6705

 Initial vs. Day 24

2.000

−3.150 - 7.150

0.3786

 Initial vs. Day 30

4.857

−2.032 - 11.75

0.1352

Group II Preprandial

 Initial vs. Day 12

0.5000

−6.764 - 7.764

0.8665

 Initial vs. Day 24

13.00

1.407–24.59

0.0345

 Initial vs. Day 30

13.67

5.766–21.57

0.0067

Group I Postprandial

 Initial vs. Day 12

13.29

3.329–23.24

0.0171

 Initial vs. Day 24

17.29

0.9953–33.58

0.0409

 Initial vs. Day 30

27.00

3.378–50.62

0.0313

Group II Postprandial

 Initial vs. Day 12

16.67

4.687–28.65

0.0159

 Initial vs. Day 24

30.50

3.726–57.27

0.0327

 Initial vs. Day 30

40.33

15.23–65.43

0.0091

  1. We compared preprandial and postprandial plasma glucose levels taken at each time point to initial values and calculated statistical significance using a paired t-test in GraphPad Prism 5.0 software. Mean change in plasma glucose, 95% confidence interval, and P value are shown for each time point as compared to initial values, with P ≤ 0.05 in bold text