DOWNLOADS: Benefit Classifications (WORD | PDF)
The ORBIT classification system for missing or complete outcome reporting in benefit outcomes
|
|||
Classification |
Description |
Level of reporting |
Risk of bias* |
Clear that the outcome was measured and analysed |
|||
A |
Trial report states that outcome was analysed but only reports that result was not significant (typically stating p-value>0.05). |
Partial |
High Risk |
B |
Trial report states that outcome was analysed but only reports that result was significant (typically stating p-value<0.05). |
Partial |
No Risk |
C |
Trial report states that outcome was analysed but insufficient data were presented for the trial to be included in meta-analysis or to be considered to be fully tabulated. |
Partial |
Low Risk |
D |
Trial report states that outcome was analysed but no results reported. |
None |
High Risk |
Clear that the outcome was measured |
|||
E |
Clear that the outcome was measured. Judgment says outcome likely to have been analysed but not reported because of non-significant results. |
None |
High Risk |
F |
Clear that the outcome was measured. Judgment says outcome unlikely to have been analysed. |
None |
Low Risk |
Unclear whether the outcome was measured |
|||
G |
Not mentioned but clinical judgment says likely to have been measured and analysed but not reported on the basis of non-significant results. |
None |
High Risk |
H |
Not mentioned but clinical judgment says unlikely to have been measured at all. |
None |
Low Risk |
Clear that the outcome was not measured |
|||
I |
Clear that the outcome was not measured. |
NA |
No Risk |
*Risk of bias arising from the lack of inclusion of non-significant results when a trial was excluded from a meta-analysis or not fully reported in a review because the data were unavailable.