Table 3 Predictors of length of hospital stay (LOS) among patients with chronic lower limb ulcers according to univariate and multivariate logistic regression analysis

Age

 <20

14(17.5)

66(82.5)

1

 >20

45(20.4)

175(79.6)

1.1

0.4-1.6

0.570

Sex

 Male

42(21.0)

158(79.0)

1

 Female

17(17.0)

83(83.0)

1.3

0.7-2.4

0.412

HIV status

 Positive

2(10.0)

18(90.0)

1

 Negative

57(20.4)

223(79.6)

2.3

0.5-10.2

0.273

Pre-morbid illness

 Absent

51(20.7)

195(79.3)

1

 Present

8(14.8)

46(85.2)

1.5

0.7-3.4

0.324

Duration of illness

 1/12-3/12

47(19.9)

189(80.1)

1

 3/12-1 year

7(16.7)

35(83.3)

1.2

0.5-3.0

0.624

 >1 year

5(22.7)

17(77.3)

0.8

0.3-2.4

0.753

Type of ulcer

 Traumatic ulcer

42(23.2)

139(76.8)

1

 Vascular ulcer

2(18.2)

9(81.8)

1.4

0.3-6.5

0.701

 Neoplastic ulcer

4(20.0)

16(80.0)

1.2

0.4-3.8

0.746

 Infective ulcer

6(14.0)

37(86.1)

1.9

0.7-4.7

0.189

 Metabolic ulcer

3(8.6)

32(91.4)

3.2

0.9-11.1

0.063

3.5

1.0-12.5

0.056

 Neuropathic ulcer

1(12.5)

7(87.5)

2.1

0.3-17.7

0.489

 Ulcerating skin disease

1(50.0)

1(50.0)

0.3

0.01-4.9

0.401

Ulcer size in cm

 ≤5

38(20.2)

150(79.8)

1

 >5-10

17(19.3)

71(80.7)

1.1

0.6-2.0

0.862

 >10

4(16.7)

20(83.3)

1.3

0.4-3.9

0.682

Mode of treatment

 Conservative

13(34.2)

25(65.8)

1

 Surgical

46(17.6)

216(82.4)

2.4

1.2-5.1

0.018

3.2

1.4-7.1

0.005

Postoperative complications

 Absent

26(21.3)

96(78.7)

1

 Present

33(18.5)

145(81.5)

1.2

0.7-2.1

0.553