Skip to main content

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