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Table 1 Baseline characteristics for all randomized patients

From: Exercise therapy after ultrasound-guided corticosteroid injections in patients with subacromial pain syndrome: a randomized controlled trial

  Intervention (n = 49) Mean (SD) Control (n = 50) Mean (SD) Combined (n = 99) Mean (SD) Min Max
Age (years) 49.4 (13.1) 47.7 (13.3) 48.5 (13.1) 18.1 69.1
Female, n 30 (61 %)b 28 (56 %)b 58 (59 %)b - -
Pain rest, mm VAS 5 (0 to 24)a 11 (0 to 30)a 7 (0 to 29)a 0 77
Pain activity, mm VAS 38 (19 to 60)a 48 (25 to 62)a 45 (23 to 62)a 0 100
Ultrasound variables      
 Clinical impingement, yes 45 (92 %)b 45 (90 %)b 90 (91 %)b - -
 Ultrasound impingement, yes 16 (34 %)b 25 (50 %)b 41 (42 %)b - -
 Bursa thickness, mm 2.63 (0.59) 2.74 (0.82) 2.68 (0.71) 1.6 5.4
Shoulder Disability Questionnaire      
 Percentage score in difficulty performing shoulder task, 0–100 % 65.9 (24.8) 68.4 (20.8) 67.1 (22.8) 9.1 100
Muscle strength      
 MVC abduction, N 70.4 (48.4 to 103.0)a 63.8 (44.0 to 85.8)a 67.1 (46.2 to 94.6)a 24.2 209.0
 MVC internal rotation, N 138.0 (110.0 to 184.0)a 118.0 (81.4to 167.0)a 126.0 (99.0 to 171.0)a 41.8 325.0
 MVC external rotation, N 112.0 (85.8 to 136.0)a 99.0 (81.4to 129.0)a 104.0 (81.4 to 134.0)a 39.6 193.0
  1. Data are presented as mean (SD) except where stated otherwise. VAS visual analog scale, MVC maximal voluntary contraction. aData are median (interquartile range). bData are number of participants (%)