Table 3.

The area of NSFT and LPO level between patients and healthy controls (x ± s)

Area of NSFT	time	patients	controls	t	P
Concentration 1	5 min	1131.73 ± 514.22	1584.29 ± 437.71	-2.55a	0.013*
	10 min	3378.83 ± 1089.75	4070.81 ± 822.53	-3.20a	0.002*
Concentration 2	5 min	929.39 ± 485.68	1172.17 ± 459.58	-2.29a	0.024*
	10 min	2734.20 ± 1169.64	3317.38 ± 817.92	-2.58a	0.012*
Concentration 3	5 min	638.97 ± 438.91	933.86 ± 483.69	-2.86a	0.06
	10 min	2068.58 ± 1077.85	2759.60 ± 970.91	-3.01a	0.003*
LPO(umol/L)	-	8.159 ± 2.191	4.582 ± 2.373	7.004	<0.001**

NSFT, niacin skin flush test

^a: Student’s t-test

*P<0.05;**P<0.001