Table 3.

Distribution of the aqueous levels of the sphingolipid metabolism parameters in the groups

Aqueous levels	Control group n=15	Diabetes group n=30	NDR group n=11	NPDR group n=11	PDR group n=8	P (Control vs diabetes group)	P (Control vs diabetes subgroups)
S1P (ng/ml)	28.59±0.85	29.39±1.82	28.59±0.68	28.75±1.77	31.37±1.60	0.512	0.003
SK1 (ng/ml)	24.43±1.92	31.69±2.17	30.19±1.76	32.46±1.61	32.48±2.51	<0.001	<0.001
SK2 (ng/ml)	9.49±0.55	11.99±1.71	10.55±0.88	11.94±1.02	13.86±1.52	0.012	<0.001
ASM (ng/ml)	0.59±0.18	0.91±0.44	0.66±0.32	0.942±0.31	1.23±0.55	0.006	<0.001
CK (ng/ml)	41.43±6.63	56.38±15.8	52.79±20.6	57.11±11.33	60.33±14.31	0.002	0.010