Table 3

Patients in the intramuscular group by their basal INR


Basal INR < 2,5 (n = 55)
Basal INR ≥ 2,5 (n = 37)
95% confidence interval of the difference

Mean change circumference of the arm (SD), cm, 24 h
+0,32 (1,01)
+0,22 (0,75)
-0,26 to +0,47 *
Patients with increase of the circumference of the arm >= 1 cm, n (%), 24 h
11 (20,0%)
7 (18,9%)
-15,4% to +17,5%
Patients with skin lesions in the administration area, n (%), 24 h
9 (16,4%)
7 (18,9%)
-18,5% to +13,4%
Mean Visual Analog Pain Scale (SD), 24 h
0,30 (0,93)
0,28 (0,70)
-0,32 to +0,36 *
Patients with Visual Analog Pain Scale > 0, n (%), 24 h
7 (12,7%)
6 (16,2%)
-18,3% to +11,3%
Mean change INR (SD), 24 h
-0,02 (0,44)
-0,13 (0,68)
-0,14 to +0,37 *
Mean change INR (SD), 10d
+0,14 (0,87)
-0,03 (1,01)
-0,23 to +0,58 *

*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