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Table 2 Patients’ baseline characteristics

From: Effectiveness of saline water and lidocaine injection treatment of intractable plantar keratoma: a randomised feasibility study

Number of patients (Total = 40)

Group 1

n = 10

Group 2

n = 10

Group 3

n = 10

Group 4

n = 10

Pa value

Age in years, Mean (SD)

59.7 (18.8)

60.1 (14.8)

61.6 (14.4)

50.3 (17.7)

0.4

Sex ratio, M:W

6:4

3:7

4:6

4:6

–

Time since IPK apparition in months, Mean (SD)

213.0 (228.3)

192.6 (140.9)

132.0 (74.7)

62.8 (69.2)

0.1

Time before first consultation in weeks, Mean (SD)

439.4 (602.4)

153.4 (198.6)

242.0 (503.5)

119.2 (201.2)

0.3

Time spent standing hours/day, Mean (SD)

6.5 (2.9)

6.0 (2.3)

7.9 (3.2)

6.9 (3.2)

0.5

Debridement frequency before study in days, Mean (SD)

100.9 (102.2)

142.8 (134.4)

98.9 (29.0)

91.3 (38.3)

0.6

Smoking (n)

6

2

2

4

0.2

Plantar orthoses worn daily (n)

5

3

4

2

0.5

Macerated IPK at first visit (n)

6

3

3

3

0.4

Presence of foot deformity (n)

3

6

4

2

0.3

IPK location ratio, Met:H:S

10:0:0

10:0:0

7:2:1

7:0:2

–

  1. a P-value calculated with the chi-squared test
  2. SD standard deviation; M men; W women; IPK intractable plantar keratoma; Met under metatarsal head; H under the heal; S under styloid process of the 5th metatarsal; n number