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Table 1 Classification of low back pain grade

From: Is a history of work-related low back injury associated with prevalent low back pain and depression in the general population?

Grade

Scoring

Interpretation

0

No pain, no disability

No chronic pain

I

PI < 50; DP <3

Low pain intensity/low disability

II

PI ≥ 50; DP < 3

High pain intensity/low disability

III

DP = 3–4

High disability/moderately limiting

IV

DP = 5–6

High disability/severely limiting

  1. Abbreviations: PI, pain intensity; DP, disability points