Table 1.

The rate of major amputation according to patients’ demographic and health characteristics

Variable	Major amputation				Total number of DFS		P-value
	No		Yes
	n	%	n	%	n	%
Gender							0.761
Male	136	88.9	17	11.1	153	68
Female	63	87.5	9	12.5	72	32
Age group							0.670
≤55 years	75	90.4	8	9.6	83	35.3
>55 years	133	87.5	19	12.5	152	64.7
Body mass index							0.481
≤25 kg/m2	114	89.8	13	10.2	127	56.4
>25 kg/m2	85	86.7	13	13.3	98	43.6
Duration of diabetes							0.000
<15 years	111	96.5	4	3.5	115	51.1
≥15 years	88	80	22	20.0	110	48.9
Antidiabetic treatments							0.000
Oral drugs	113	97.4	3	2.6	116	51.6
Insulin	86	78.9	23	21.1	109	48.4
HbA1c							0.002
<8%	102	95.3	5	4.7	107	47.6
≥8%	97	82.2	21	17.7	118	52.4
ESR							0.917
<49 mm/h	94	88.7	12	11.3	106	47.1
≥49 mm/h	105	88.2	14	11.8	109	52.9
Smoking							0.380
No	89	86.4	14	13.6	103	45.8
Yes	110	90.2	12	9.8	122	54.2
Hypertension							0.040
No	88	93.6	6	6.4	94	41.8
Yes	111	84.7	20	15.3	131	58.2
Cardiac diseases							0.019
No	131	92.3	11	7.7	142	63.1
Yes	68	81.9	15	18.1	83	36.9
Chronic renal disease							0.001
No	170	91.9	15	8.1	185	82.2
Yes	29	72.5	11	27.5	40	17.8
Stroke							0.025
No	186	89.9	21	10.1	207	92.0
Yes	13	72.2	5	27.8	18	8.0

Abbreviations: DFS, diabetic foot syndrome; ESR, erythrocyte sedimentation rate; HbA1c, glycated hemoglobin level.