Postprandial Glucose Levels Are Better Associated with the Risk Factors for Diabetes Compared to Fasting Glucose and Glycosylated Hemoglobin (HbA1c) Levels in Elderly Prediabetics: Beneficial Effects of Polyherbal Supplements—A Randomized, Double-Blind, Placebo Controlled Trial

Table 3

Differences in 2h-postprandial glucose levels (2h-PG, mmol/l) between the GlucoVita and placebo subgroups stratified by age, BMI, and metabolic symptoms.

Subgroup	Treatment	Preintervention	Postintervention	Change in Value
Total
	GlucoVita (N=43)	8.15±1.67	7.35±2.06	0.76±2.02
	Placebo (N=45)	7.94±1.54	7.41±2.11	0.60±1.92
	t	0.61	-0.13	0.39
	P	0.55	0.90	0.69
AGE
Age<=65yrs	GlucoVita (N=31)	8.02±1.78	7.10±2.16	0.92±2.00
	Placebo (N=30)	7.95±1.6	7.06±1.95	0.99±1.93
	t	0.17	0.08	-0.13
	P	0.86	0.94	0.90
Age>65yrs	GlucoVita (N=12)	8.48±1.37	8.00±1.7	0.36±2.11
	Placebo (N=15)	7.93±1.48	8.11±2.31	-0.18±1.71
	t	0.99	-0.13	0.73
	P	0.33	0.89	0.47
SYMPTOMS
No symptoms	GlucoVita (N=23)	8.05±1.93	7.06±2.01	0.99±2.16
	Placebo (N=24)	7.41±1.41	6.98±1.76	0.42±1.41
	t	1.30	0.14	1.06
	P	0.20	0.89	0.29
Symptoms present	GlucoVita (N=20)	8.27±1.36	7.69±2.12	0.51±1.87
	Placebo (N=21)	8.55±1.49	7.90±2.41	0.80±2.4
	t	-0.64	-0.30	-0.43
	P	0.53	0.77	0.67
BMI
Normal	GlucoVita (N=13)	7.33±1.68	7.05±2.23	0.18±1.91
	Placebo (N=12)	7.6±1.11	6.68±1.49	0.93±2.24
	t	-0.47	0.48	-0.91
	P	0.64	0.63	0.37
Overweight	GlucoVita (N=20)	8.80±1.51^++	7.20±1.83	1.60±2.12^+
	Placebo (N=22)	7.53±1.4	7.15±1.82	0.52±1.22
	t	2.83	0.10	2.05
	P	0.01	0.92	0.05
Obese	GlucoVita (N=10)	7.90±1.57	8.05±2.32	-0.15±1.31
	Placebo (N=11)	9.14±1.7	8.74±2.74	0.40±2.72
	t	-1.72	-0.62	-0.58
	P	0.10	0.55	0.57
FG
Normal	GlucoVita (N=16)	9.13±1.05	7.37±2.14	1.76±2.67
	Placebo (N=12)	8.65±0.93	6.94±1.74	1.71±2.02
	t	1.25	0.57	0.06
	P	0.22	0.58	0.96
Impaired	GlucoVita (N=27)	7.57±1.71	7.34±2.06	0.18±1.24
	Placebo (N=33)	7.68±1.65	7.58±2.23	0.20±1.75
	t	-0.26	-0.43	-0.05
	P	0.79	0.67	0.96
2h-PG
Normal	GlucoVita (N=16)	6.37±0.81	6.24±1.7	0.05±1.40
	Placebo (N=16)	6.30±0.85	6.88±1.54	-0.39±0.9
	t	0.24	-1.12	1.05
	P	0.81	0.27	0.30
Impaired	GlucoVita (N=27)	9.20±1.02	8.01±1.99	1.19±2.23
	Placebo (N=29)	8.85±0.99	7.70±2.34	1.15±2.12
	t	1.33	0.53	0.08
	P	0.19	0.60	0.94

, P<0.05 within-group comparison: preintervention versus postintervention.
⁺, P<0.05 between-group comparison.
⁺⁺, P<0.01 between-group comparison.