Prediction of bowel management independence after ischemic spinal cord injury.
Chiara Pavese, Giorgio Scivoletto, Mariangela V Puci and 8 others
PMID 35666490WHAT IT FOUND
A single motor strength score taken within 40 days of ischemic spinal cord injury predicted who would regain independent bowel management at one year.
The model showed fair accuracy but missed many patients who would not recover, so use it to guide expectations rather than to rule out need for support.
Key findings
01The prediction model showed fair discrimination with an area under the curve of 0.780, but low specificity of 26%, meaning it correctly identified few patients who would fail to achieve independent bowel management.
02Sixty-five percent of the 142 analyzed patients reached independent bowel management at one year.
03The model relies on a single predictor, the ISNCSCI total motor score, collected within 40 days of injury, which ranges from 0 to 100.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
High loss to follow-up: 189 of 331 patients (57%) were excluded from analysis. Rehabilitation interventions were not standardized across centers, so center effects may confound outcomes. The outcome measure (SCIM item 7) captures independence and reliability but not duration, modality, or patient satisfaction with bowel function. The model was validated in ischemic spinal cord injury only; performance may differ in traumatic injury. Low specificity means the model misses many patients who will not achieve independence.
Declared interests
No conflicts of interest or funding sources are declared in the provided text.
The easy way to misread this
Do not interpret the 96% sensitivity as evidence the model reliably predicts who will fail to recover. The low specificity of 26% means most patients who will not achieve independent bowel management are misclassified as likely to recover.