Table 2.

Categories of patients and controls based on the presence or absence of leg ulcer

	HbAA (Gp 1)	SNLU (Gp 2)	SWLU (Gp 3)	P (Gp 1 vs 2 vs 3)	P (Gp 1 vs 2)	P (Gp 1 vs 3)	P (Gp 2 vs 3)
n (limbs)	66	64	24
BMI, median, kg/m2	21.64	18.08	19.84	<.001*	<.001†	.002†	.298†
Hb conc., median, g/dL	ND	8.33	7.67	NA	NA	NA	.003†
WBCs, median, ×109/L	ND	9.20	9.80	NA	NA	NA	.136†
Platelets, median, ×109/L	ND	285.50	305.00	NA	NA	NA	.851†
O2 saturation, median, %	98.00	95.50	93.00	<.001*	<.001†	<.001†	.033†
sP-selectin, median, ng/mL	72.70	78.15	79.40	.001*	.001†	.003†	.399†
HbF, median, ng/mL	273.90	369.90	397.25	<.001*	<.001†	<.001†	.626†
HCY, median, μmol/L	8.30	13.85	13.72	<.001*	<.001†	<.001†	.154†
KIM1, median, pg/mL	125.00	445.00	460.00	<.001*	<.001†	<.001†	.771†
CysC, median, mg/L	1.10	4.50	5.70	<.001*	<.001†	<.001†	.047†
Creatinine, median, μmol/L	ND	80.0	90.5	NA	NA	NA	.368†
CFA IMT, median, mm	0.60	0.70	1.0	<.001*	<.001†	<.001†	<.001†

Gp, group; NA, not applicable; ND, not determined.

^*Kruskal-Wallis test applied.

^†Mann-Whitney U test applied.