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Table 2 Baseline participants characteristics

From: Transcranial direct current stimulation (a-tCDS) after subacromial injections in patients with subacromial pain syndrome: a randomized controlled pilot study

Variable r-tDCS group s-tDCS group Control All groups
Number of participants 12 12 14 38
Sex Male: 6 (50%) Male: 7 (58.3%) Male: 7 (50%) Male: 20 (52.6%)
Female: 6 (50%) Female: 5 (41.7%) Female: 7 (50%) Female: 18 (47.4%)
Age (years ± SD) 52.0 ± 10.3 years 44.1 ± 6.9 years 50.2 ± 12.1 years 48.8 ± 10.4 years
Body mass index (BMI ± SD) 27.21 ± 5.0 28.7 ± 5.9 27.7 ± 4.36 27.9 ± 5.0
Dominant upper extremity Right: 11 (91.7%) Right: 10 (82.3%) Right: 11 (78.6%) Right: 32 (84.3%)
Left: 1 (8.3%) Left: 2 (16.7%) Left: 3 (21.4%) Left: 6 (15.7%)
Affected shoulder Dominant: 9 (75%) Dominant: 6 (50%) Dominant: 6 (42.9%) Dominant: 20 (52.6%)
Non-dominant: 3 (25%) Non-dominant: 6 (50%) Non-dominant: 8 (57.1%) Non-dominant: 18 (47.4%)
Time since onset of symptoms (months ± SD) 82.3 ± 75.3 months 88.6 ± 106.2 months 48.1 ± 50.3 months 71.4 ± 79.3 months
Baecke physical activity index (score ± SD) 8.7 ± 1.4 8.6 ± 1.9 9.1 ± 1.4 8.8 ± 1.5
Frequency of repetitive motions at work Never: 1 (8.3%) Never: 0 (0%) Never: 0 (0%) Never: 1 (2.6%)
Rarely: 1 (8.3%) Rarely: 1 (8.3%) Rarely: 2 (14.3%) Rarely: 4 (10.6%)
Sometimes: 3 (25%) Sometimes: 3 (25%) Sometimes: 2 (14.3%) Sometimes: 8 (21.1%)
Often: 3 (25%) Often: 4 (33.3%) Often: 3 (21.4%) Often: 10 (26.3%)
Very often: 4 (33.3%) Very often: 4 (33.3%) Very often: 7 (50%) Very often: 15 (39.5%)
Frequency of overhead tasks at work Never: 2 (16.7%) Never: 0 (0%) Never: 0 (0%) Never: 3 (5.3%)
Rarely: 4 (33.3%) Rarely: 4 (33.3%) Rarely: 3 (21.4%) Rarely: 11 (28.9%)
Sometimes: 3 (25%) Sometimes: 6 (50%) Sometimes: 3 (21.4%) Sometimes: 12 (31.6%)
Often: 1 (8.3%) Often: 1 (8.3%) Often: 6 (42.9%) Often: 8 (21.1%)
Very often: 2 (16.7%) Very often: 1 (8.3%) Very often: 2 (14.3%) Very often: 5 (13.2%)
  1. Results shown as: total number (frequency %) unless otherwise noted
  2. Abbreviations: tDCS transcranial direct current stimulation, r-tDCS real tDCS, s-tDCS sham tDCS, SD standard deviation