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. 2013 Jun 17;6:459–469. doi: 10.2147/JPR.S44939

Figure 9.

Figure 9

PTPS NeP subjects with more severe pain experienced greater losses in productivity.a

Notes: aScores on the BPI-SF Pain Severity were used to classify average pain severity. Three subjects did not respond to all required items needed to calculate a BPI-SF average pain severity score and thus were not included in any analysis by pain severity category. WPAI overall work impairment among those employed, and activity impairment among both employed and unemployed scored on a 0%–100% scale. **A statistically significant difference was observed across pain severity levels at the 0.05 level for overall work impairment (P = 0.0026). ***A statistically significant difference was observed across pain severity levels at the <0.0001 level for activity impairment (P < 0.0001).

Abbreviations: PTPS, post-traumatic/post-surgical; NeP, neuropathic pain; BPI-SF, Brief Pain Inventory-Short Form; WPAI, Work Productivity and Activity Impairment.