Effectiveness of Green Tea in a Randomized Human Cohort: Relevance to Diabetes and Its Complications
Table 4
Characteristics of female participants () at baseline, after 14-week intervention period, and after 2-week washout period.
Variables
Female green tea group
Female control group
n
Baseline
Week 14
Washout
n
Baseline
Week 14
Washout
Age (year)
32
28
Weight (kg)
32
28
BMI (kg/m2)
31
(0.6)
(0.2)
28
(0.1)
(0.4)
Waist-hip ratio
31
(0.0)
(2.0)*
27
(1.8)*
(2.4)*
MAPa (mmHg)
31
(−1.2)
(−0.2)
27
(−2.6)*
(−2.4)
Glucose (mg/dL)
32
(0.5)
(−1.8)
28
(4.1)*
(−0.3)
HbA1c (%)
30
6.10 5.90–6.50
5.95 [5.80–6.30]
6.10 [5.90–6.40]
25
6.00 [5.78–6.10]
5.90 [5.80–6.20]
6.00 [5.88–6.30]*
Cholesterol (mg/dL)
31
(−4.8)
(−0.8)
28
(−8.1)*
(−5.5)*
Triglycerides (mg/dL)
31
(−6.4)
(5.4)
25
(9.0)
(10.1)
LDL (mg/dL)
30
(−7.9)*
(−1.5)
27
(−13.7)*
(−4.7)
HDL (mg/dL)
31
(−3.8)*
(−1.6)
28
(−5.2)*
(−5.6)*
LDL/HDL
29
(−5.5)
(−0.7)
27
(−11.6)
(−3.2)
Ferritin (ng/dL)
29
(11.7)
(14.8)
26
(−6.3)
(6.2)
Albumin (g/dL)
29
(−0.9)
(1.3)
25
(−2.3)*
(−1.4)
Serum creatinine (mg/dL)
31
0.90 [0.83–1.00]
0.90 [0.80–1.00]
0.80 [0.80–0.98]*
28
0.90 [0.80–0.95]
0.90 [0.80–0.90]
0.80 [0.80–0.90]*
Urinary creatinine (mg/dL)
30
(18.2)
(−11.7)
23
(9.7)
(−13.2)
Urea (mg/dL)
32
(1.4)
(−5.4)
27
(−5.2)
(−7.0)
eGFRb (mL/min per 1.73 m2)
28
(3.7)
(6.3)*
27
(3.3)
(9.1)*
ASTc (IU/L)
31
(0.7)
(−3.8)
27
(0.7)
(3.6)
ALTd (IU/L)
29
(−13.0)*
(−10.0)*
26
(−6.9)
(−6.4)
TASe (mmol/L)
29
(11.9)*
(19.6)*
24
(8.3)*#
(21.1)*
Human sera HT50 (minutes)
31
(5.1)*
(3.6)*
26
(−0.9)
(−0.2)
Parametric variables are expressed as mean ± standard deviation, whereas nonparametric variables are expressed as median [interquartile range]. Percentage change relative to baseline means are indicated in round brackets. *Mean or median value is significantly different from that of baseline () (compare within row and within group). #Mean or median value is significantly different from that of week 14 () (compare within row and between group). aMean arterial pressure; bestimated glomerular filtration rate; caminotransferase aspartate; daminotransferase alanine; etotal antioxidant status.