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| Correlation (r) | p-value | |
|---|---|---|
| GCS versus RASS | 0.70 | < 0.001 |
| GCS versus SAS | 0.74 | < 0.001 |
| GCS versus Ramsay | - 0.82 | < 0.001 |
| RASS versus SAS | 0.91 | < 0.001 |
| RASS versus Ramsay | - 0.79 | < 0.001 |
| SAS versus Ramsay | - 0.85 | < 0.001 |
GCS = Glasgow Coma scale; RASS = Richmond agitation-sedation scale; SAS = sedation-agitation scale.
