Interrater reliability of PTS instrument parameters in a cohort (n=45) comprised of healthy children and children with a history of lower-extremity DVT
| Parameter . | Percent agreement . |
|---|---|
| Edema, mid-thigh | 91% |
| Edema, mid-calf | 93% |
| Dilated superficial collateral veins | 100% |
| Venous stasis dermatitis | 100% |
| Venous stasis ulceration | 100% |
| Chronic lower extremity pain, limiting aerobic activities | 100% |
| Chronic lower extremity pain, limiting ADL | 100% |
| Chronic lower extremity pain at rest | 100% |
| Parameter . | Percent agreement . |
|---|---|
| Edema, mid-thigh | 91% |
| Edema, mid-calf | 93% |
| Dilated superficial collateral veins | 100% |
| Venous stasis dermatitis | 100% |
| Venous stasis ulceration | 100% |
| Chronic lower extremity pain, limiting aerobic activities | 100% |
| Chronic lower extremity pain, limiting ADL | 100% |
| Chronic lower extremity pain at rest | 100% |
PTS assessment using the standardized outcome instrument was independently performed by two trained clinicians who were blinded to each other's findings.
PTS indicates post-thrombotic syndrome; DVT, deep venous thrombosis ADL, activities of daily living.