. 2014 Sep;39(5):424–432.

Table 4.

The comparison of insulin resistance indices before and after the intervention in sour tea and green tea groups

Variables	Baseline			End			P value**
	Percentiles			Percentiles
	25^th	50^th	75^th	25^th	50^th	75^th
Fasting blood insulin (μIU/mL)
Sour tea	6.3	8.2	10.6	7.2	16.3	11	<0.005
Green tea	6.6	8.5	11.2	7.6	6.6	11.9	0.04
P value*		0.70			0.005
HOMA-IR
Sour tea	0.9	1.20	1.50	1.0	1.60	2.40	<0.002
Green tea	1.0	1.30	1.70	0.80	1.1	1.75	<0.07
P value		0.60			0.004
Beta-cell function (%)
Sour tea	23.90	38.20	52.20	31.60	47.70	70.90	0.023
Green tea	25.20	40.00	58.10	26.10	38.10	66.70	<0.90
P value		0.80			0.20

Wilcoxon Signed Ranks’ Test;** Mann-Whitney Test