Skip to main content

Table 1 Strength of Evidence grading used in these Guidelines.

From: 2011 SOSORT guidelines: Orthopaedic and Rehabilitation treatment of idiopathic scoliosis during growth

Strength of evidence

Question

Meaning

I

Effectiveness

Multiple Randomized Controlled Trials or Systematic Reviews of such studies

 

Diagnosis

Multiple Randomized Controlled Trials, or Cross-sectional Studies with verification by reference (gold) standard, or Systematic Reviews of such studies

II

Effectiveness

One Randomized Controlled Trial

 

Diagnosis

One Randomized Controlled Trial, or one Cross-sectional Study with verification by reference (gold) standard

III

Effectiveness

Multiple Controlled nonrandomized Studies or Systematic Reviews of such studies

 

Diagnosis

Multiple Cross-sectional Studies with incomplete & unbalanced verification with reference (gold) standard

IV

Effectiveness

Other studies

 

Diagnosis

 

V

Effectiveness

SOSORT Consensus with more than 90% of agreement

 

Diagnosis

 

VI

Effectiveness

SOSORT Consensus with 70 to 89% of agreement

 

Diagnosis

 
  1. Questions on Effectiveness (treatment results) and Diagnosis (assessment) have been considered