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Table 3 Adverse events for both treatments

From: Manual therapy compared with physical therapy in patients with non-specific neck pain: a randomized controlled trial

Adverse events   3 weeks    7 weeks   13 weeks  
  MTU PT p MTU PT p MTU PT p
Number 40 31 0.1723 31 23 0.1964 17 12 0.3179
Severity (NRS) 4.8 (3.9) 5.3 (2.6) 0.3607 4.1 (3.1) 3.8 (2.8) 0.6456 4.9 (3.0) 3.6 (2.8) 0.2508
Time of onset (n)
 < 30 min. 4 7   5 4   3 0  
 >30 min. < 4 h. 14 7   5 4   2 3  
 > 4 h., < 24 h. 11 8   11 8   3 1  
 > 24 h. 7 6   5 5   6 1  
Duration (n)
 < 10 min. 0 0   3 2   4 1  
 > 10 min., < 1 h. 4 5   1 2   2 0  
 > 1 h., < 24 h. 13 9   10 5   8 3  
 > 24 h. 20 13   13 12   4 2  
  1. Abbreviations: MTU Manual Therapy Utrecht, PT Physical Therapy, NRS Numeric Rating Scale, n number, min minutes, hr hours