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Table 1 General characteristics

From: Rehabilitation interventions in randomized controlled trials for low back pain: proof of statistical significance often is not relevant

  n° of RCT
(n = 42)
%
N° of countries (n = 14)
 United states 11 26
 United Kingdom 9 21
 Norway 4 10
 Netherland 4 10
 Brazil 3 7
 Australia 3 7
 Finland 2 5
 Spain 1 2
 Sweden 1 2
 Switzerland 1 2
 Italy 1 2
 Thailand 1 2
 Taiwan 1 2
N° of journals (n = 19)
Most frequent journals
 Spine 13 31
 Clinical Journal of Pain 5 12
 British Medical Journal 5 12
 Journal of Manipulative and Physiological Therapeutics 3 7
 N° of reported funding 34 81
 Multi-arm trials 8 19
  n° of comparisons (n = 81) %
Comparisons
 active treatment versus active treatment 55 68
 active treatment versus inert treatment 26 32