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Table 1 Baseline clinical data

From: Exercise in claudicants increase or decrease walking ability and the response relates to mitochondrial function

  Whole group (n = 28) Positive responders (n = 8) Negative responders (n = 8) Comparison between subgroups
Mean ± SE Mean ± SE Mean ± SE p value
Sex (female) 13 (44) 4 (50) 4 (50) 1.00
Age 69.2 ± 1.7 67.3 ± 3.45 69.3 ± 3.35 0.95
BMI 26.2 ± 0.7 26.6 ± 1.3 26.7 ± 0.9 0.95
Anamnestic walking distance (m) 348 ± 54 333 ± 120 194 ± 33 0.15
Pain free walking distance (m) 240 ± 33 178 ± 34 310 ± 100 0.12
Six minutes walking distance (m) 460 ± 10 448 ± 24 456 ± 21 0.33
Maximal walking distance (m) 591 ± 42 511 ± 46 561 ± 82 0.39
Claudication onset time (s) 270 ± 28 217 ± 50 294 ± 49 0.15
Peak walking time (s) 648 ± 61 667 ± 161 620 ± 81 0.40
VO2 peak (ml/kg/min) 18 ± 0.7 18 ± 2 18 ± 1 0.99
Maximal blood flow (ml/100 ml/min) 10.9 ± 0.9 10 ± 0.5 9.96 ± 2.4 0.96
Ankle brachial index 0.57 ± .0.03 0.54 ± 0.05 0.52 ± 0.04 0.76
Smoking 7 (25) 1 (13) 4 (50) 0.05
Aspirin 20 (71) 6 (75) 4 (50) 0.15
Statin 17 (60) 5 (62) 3 (38) 0.16
Previous vascular surgery 8 (29) 0 (0) 5 (62) 0.03
Systolic pressure 144 ± 4 134 ± 7 156 ± 10 0.04
Diastolic pressure 82 ± 2 77 ± 4 89 ± 3 0.01
  1. p values are calculated by t test for continuous variables and Chi square test for categorical variables between sub-group of negative and positive responders. Data are mean ± standard error of the mean (SE) for continuous variables, and numbers (proportions; %) for categorical variables