Table 2. Clinical Outcomes in the PCD Study Sample (n = 1,065).
| Baseline (12 Months Pre-Device) | Followup (12 Months Post-Device) | Change (Post - Pre) | P-value for Change (Post-Pre) | ||||
| Lymphedema-Related Outcomes | Patients with Hospitalization, # patients (%) | 27 | 3% | 22 | 2% | 0% | 0.4111 |
| Number of Hospitalizations, Mean (SD) | 0.03 | 0.23 | 0.03 | 0.27 | 0.00 | 0.9192 | |
| Patients with Outpatient Hospital Visits, # patients (%) | 497 | 47% | 346 | 32% | −14% | <.0001 | |
| Number of Outpatient Hospital Visits, Mean (SD) | 2.76 | 6.00 | 1.96 | 6.38 | −0.80 | 0.0001 | |
| Patients with Cellulitis Dx., # patients (%) | 222 | 21% | 77 | 7% | −14% | <.0001 | |
| Courses of Physical Therapy, Mean (SD) | 0.48 | 1.05 | 0.41 | 1.03 | −0.07 | 0.0172 | |
| Use of Physical Therapy, # patients (%) | 313 | 29% | 221 | 21% | −9% | <.0001 | |
| Non-Lymphedema-Related Outcomes | Patients with Hospitalization, # patients (%) | 482 | 45% | 345 | 32% | −13% | <.0001 |
| Number of Hospitalizations, Mean (SD) | 0.89 | 1.43 | 0.67 | 1.50 | −0.22 | <.0001 | |
| Patients with Outpatient Hospital Visits, # patients (%) | 990 | 93% | 942 | 88% | −5% | <.0001 | |
| Number of Outpatient Hospital Visits, Mean (SD) | 12.49 | 15.11 | 9.73 | 15.84 | −2.76 | <.0001 | |
| Patients with Cellulitis Diagnosis # patients (%) | 295 | 28% | 201 | 19% | −9% | <.0001 | |
| Courses of Physical Therapy, Mean (SD) | 0.55 | 1.28 | 0.48 | 1.13 | −0.08 | 0.0216 | |
| Use of Physical Therapy, # patients (%) | 297 | 28% | 270 | 25% | −3% | 0.0934 | |
| All Outcomes | Patients with Hospitalization, | 482 | 45% | 345 | 32% | −13% | <.0001 |
| # unique patients (%) | |||||||
| Number of Hospitalizations, Mean (SD) | 0.92 | 1.48 | 0.7 | 1.57 | −0.22 | <.0001 | |
| Patients with Outpatient Hospital Visits, # unique patients (%) | 1,009 | 95% | 959 | 90% | −5% | <.0001 | |
| Number of Outpatient Hospital Visits, Mean (SD) | 15.25 | 16.89 | 11.69 | 17.83 | −3.56 | <.0001 | |
| Patients with Cellulitis Dx., # unique patients (%) | 295 | 28% | 237 | 22% | −5% | 0.0003 | |
| Courses of Physical Therapy, Mean (SD) | 1.04 | 1.63 | 0.88 | 1.52 | −0.15 | 0.0007 | |
| Use of Physical Therapy, # unique patients (%) | 529 | 50% | 434 | 41% | −9% | <.0001 | |
Notes:
Lymphedema-related: ICD-9 code of (457.0,457.1,757.0) in primary or secondary position of claim. All other claims grouped with Non-Lymphedema-Related.
Number of hospitalizations, Outpatient Hospital Visits, and courses of PT are for patients with 1 or more of the visit type.
P-values: Continuous variables tested pre minus post with paired t-test. Binary variables tested with McNemar's test.