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. 2023 Jun 27;24:432. doi: 10.1186/s13063-023-07447-1

Table 3.

Obstructive Symptoms Scale

Level Description
0 No obstructive pain
1

Obstructive paina

No vomiting

No complete bowel obstructionb

Occurring on less than 4 days during the last 8 weeks

2

Obstructive paina

No vomiting

No complete bowel obstructionb

Occurring on 4 or more days during the last 8 weeks

3

Obstructive paina

Associated with vomiting

Or complete bowel obstructionb resolving

Without hospitalization

Occurring on 1 or 2 days during the last 8 weeks

4

Obstructive paina

Associated with vomiting

Or complete bowel obstructionb resolving

Without hospitalization

Occurring on at least 3 days and fewer than 8 days

During the last 8 weeks

5

Obstructive paina

Associated with vomiting

Or complete bowel obstructionb resolving

Without hospitalization

Occurring on 8 days or more during the last 8 weeks

6

At least one episode of complete bowel obstruction

Requiring hospitalization during the last 8 weeks

aOccurring after meals or increased by food, with intestinal noises that relieve the pain

bNo passage of flatus associated with bloating