Table 1

Baseline characteristics of randomised participants

Tourniquet inflated,
n=27
Tourniquet not inflated,
n=26
All participants,
n=53
Background information available (n, %)25 (93)24 (92)49 (93)
Study knee (left; n, %)14 (56)12 (50)26 (53)
Age at study registration (in years; mean, SD)69.4 (6.9)67.5 (6.8)69.4 (6.9)
Sex (female; n, %)11 (41)13 (50)24 (45)
BMI (kg/m2)
 Mean, SD30.5 (5.5)30.6 (5.2)30.6 (5.3)
 Missing1 (4)1 (4)2 (4)
 Current smoker (yes; n, %)1 (4)01 (2)
Weekly alcohol consumption (n, %)
 09 (36)12 (50)21 (43)
 1–711 (44)7 (29)18 (37)
 8–143 (12)1 (4)4 (8)
 15–211 (4)2 (8)3 (6)
 More than 211 (4)1 (4)2 (4)
 Missing01 (4)1 (2)
Previous DVT, PE or VTE (yes; n, %)2 (8)1 (4)3 (6)
Previous cerebrovascular accident/stroke (n, %)
 No25 (100)22 (92)47 (96)
 Yes01 (4)1 (2)
 Missing01 (4)1 (2)
Taking blood thinning medication (n, %)
 No20 (80)17 (71)37 (76)
 Yes5 (20)6 (25)11 (22)
 Missing01 (4)1 (2)
Previous surgery/injury to study knee (yes, n, %)12 (48)12 (50)24 (49)
Hospital location (n, %)
 University Hospital3 (11)4 (15)7 (13)
 Rugby St Cross24 (89)22 (85)46 (87)
Baseline MRI lesion category (n, % per group)
 None3 (12.5)3 (11.5)6 (11)
 Less than 10 lesions8 (33.3)9 (34.6)17 (32)
 10–30 lesions6 (25.0)8 (30.8)14 (26)
 Over 10 lesions with significant atrophy7 (29.2)4 (15.4)11 (21)
 Over 30 lesions with significant atrophy02 (7.7)2 (4)
 Missing3 (11%)03 (6)
  • BMI, body mass index; DVT, deep vein thrombosis; PE, Pulmonary Embolism; SVT, symptomatic venous thromboembolism.