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Table 5 Drug use during intervention by group

From: Inspiratory muscle strength training improves weaning outcome in failure to wean patients: a randomized trial

  IMST SHAM P value
Anabolic steroids    
   n (%) 6 (17%) 9 (26%) 0.34
   Mean drug days 10.8 ± 4.8 15.6 ± 7.3 0.19
Antibacterial agents    
   n (%) 30 (86%) 29 (85%) 0.77
   Mean drug days 28. ± 27.8 31.0 ± 23.5 0.71
Antiviral agents    
   n (%) 3 (9%) 1 (3%) -
   Mean drug days 16.3 ± 4.0 6 -
Anti-arrhythmia agents    
   n (%) 13 (37%) 9 (26%) 0.34
   Mean drug days 16.1 ± 11.0 14.8 ± 10.7 0.77
Anti-hypertensive agents    
   n (%) 17 (49%) 20 (59%) 0.47
   Mean drug days 13.8 ± 11.7 15.3 ± 12.9 0.74
Bronchodilators    
   n (%) 16 (46%) 20 (59%) 0.28
   Mean drug days 12.2 ± 7.5 17.3 ± 10.6 0.43
Corticosteroids    
   n (%) 16 (46%) 13 (38%) 0.53
   Mean drug days 12.2 ± 7.5 10.8 ± 14.4 0.72
Diuretics    
   n (%) 21 (60%) 23 (68%) 0.47
   Mean drug days 10.6 ± 6.6 11.0 ± 9.4 0.88
Anti-glycemic agents    
   n (%) 24 (69%) 28 (82%) 0.18
   Mean drug days 13.5 ± 9.1 14.3 ± 11.1 0.77
Immune suppression agents    
   n (%) 3 (9%) 3 (9%) 0.70
   Mean drug days 10.3 ± 14.4 3.7 ± 3.8 0.48
Neuromuscular blockers    
   n (%) 1 (3%) 1 (3%) -
   Mean drug days 2.0 2.0 -
Narcotic analgesic agents    
   n (%) 30 (86%) 26 (76%) 0.33
   Mean drug days 12.4 ± 9.8 13.9 ± 8.7 0.55
Sedatives    
   n (%) 27 (77%) 24 (71%) 0.42
   Mean drug days 13.4 ± 13.0 11.3 ± 9.1 0.50
Vasopressors    
   n (%) 5 (14%) 8 (24%) 0.33
   Mean drug days 3.8 ± 4.7 3.1 ± 3.8 0.78
Beta-blockers    
   n (%) 31 (89%) 29 (85%) 0.96
   Mean drug days 19.6 ± 20.9 22.0 ± 21.6 0.66
  1. IMST, inspiratory muscle strength training; n, number of subjects taking that category of drug, followed by the percent of the group taking that drug category. P values for proportions were calculated with chi square, corrected with Yate's correction for cells with five or less subjects. Mean drug days = mean number (± standard deviation) of drug days for the subjects taking that category of drugs. For example, if a patient took two different antibiotics for four days, that patient would have accumulated eight drug days for the antibiotic category. Drug days were tested with unpaired T tests.