Table 2

Follow-up data


Subcutaneous group (n = 115)
Intramuscular group (n = 92)
95% confidence interval of the difference

Mean circumference of the arm (SD), cm, 24 h
32,1 (3,4)
32,2 (4,2)

Mean change circumference of the arm (SD), cm, 24 h
+0,20 (1,44)
+0,28 (0,91)
-0,40 to +0,25 *
Patients with increase of the circumference of the arm >= 1 cm, n (%), 24 h
27 (23,5%)
18 (19,6%)
-7,3% to +15,1%
     Patients with skin lesions in the administration area, n (%), 24 h
43 (37,4%)
16 (17,4%)
+8,2% to +31,8%
     Erythema, n
36
8

     Papule, n
0
3

     Plaque, n
7
5

     Nodule, n
0
2

     Cyst, n
0
0

     Vesicle, n
0
0

     Blister, n
0
0

     Ulcer, n
0
0

     Scab, n
0
2

     Haematoma, n
2
1

     Pruritus, n
4
2

     Insensitivity, n
1
0

Mean Visual Analog Pain Scale (SD), 24 h
0,43 (1,08)
0,29 (0,84)
-0,12 to 0,41 *
Patients with Visual Analog Pain Scale > 0, n (%), 24 h
23 (20,0%)
13 (14,1%)
-4,3% to +16,1%
Mean INR (SD), 24 h
2,28 (0,64)
2,30 (0,70)

Mean change INR (SD), 24 h
+0,04 (0,50)
-0,06 (0,55)
-0,04 to +0,25 *
Mean INR (SD), 10d
2,31 (0,67)
2,44 (0,95)

Mean change INR (SD), 10d
+0,08 (0,79)
+0,07 (0,93)
-0,24 to +0,24 *

*Calculated under the checked assumption of variance homogeneity of both samples.

Casajuana et al. BMC Blood Disorders 2008 8:1   doi:10.1186/1471-2326-8-1