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Table 1 ACCP classification criteria for grading evidence in clinical guideline [13]

From: Frostbite: a practical approach to hospital management

Grade

Description

Benefits vs. risks and burdens

Methodological quality of supporting evidence

1A

Strong recommendation, high-quality evidence

Benefits clearly outweigh risks and burdens or vice versa

RCTs without important limitations or overwhelming evidence from observational studies

1B

Strong recommendation, moderate-quality evidence

Benefits clearly outweigh risks and burdens or vice versa

RCTs with important limitations or exceptionally strong evidence from observational studies

1C

Strong recommendation, low-quality or very low-quality evidence

Benefits clearly outweigh risks and burdens or vice versa

Observational studies or case series

2A

Weak recommendation, high-quality evidence

Benefits closely balanced with risks and burdens

RCTs without important limitations or overwhelming evidence from observational studies

2B

Weak recommendation, moderate-quality evidence

Benefits closely balanced with risks and burdens

RCTs with important limitations or exceptionally strong evidence from observational studies

2C

Weak recommendation, low-quality or very low-quality evidence

Uncertainty in the estimates of benefits, risks and burden; benefits, risk and burden may be closely balanced

Observational studies or case series

  1. RCT, randomized controlled trial.