Background
Methods
The manufacture of a 3D printed VB
The measurement of PE severity
Study enrollment and usage of the VB
Statistical analysis
Results
Mean ± SD/median (IQR)/frequency, percentage | |
---|---|
Age, years | 3.6 (2.2,6.2) |
Female | 16,38.10% |
Height, cm | 106.3 ± 21.4 |
Weight, kg | 21.0 ± 8.2 |
Initial DR | 0.129 ± 0.036 |
Haller index | 3.07 ± 0.42 |
Frequency/median (Percent/range) | |
---|---|
Questionnaire responders | 40 (100%) |
How was the device used? | |
Duration per time, minutes # | 30 (15,60) |
TIMES per day | 1.5 (1,3) |
Vacuum, kPa | 20 (10,30) |
Complications | |
Petechia | 21 (52.5%) |
Blistering | 12 (30%) |
Discomfort | 5 (12.5%) |
Pain | 9 (22.5%) |
Effectiveness by questionnaire | |
Poor | 0 (0%) |
Fair | 18 (45%) |
Good | 20 (50%) |
Excellent | 2 (5%) |
Follow-up | Mean (SD) |
Duration, months | 11.1 (3.8) |
Change in DR | −0.057 (0.023) |
Ratioa | 0.54 (0.20) |
Variable | Univariate | multivariate | ||||
---|---|---|---|---|---|---|
OR | 95%CI | p value | OR | 95%CI | P value | |
Age | 1.37 | (0.96,1.95) | 0.084 | 1.40 | (0.95,2.07) | 0.086 |
Sex | 1.60 | (0.33,7.85) | 0.562 | |||
Height | 1.03 | (0.99,1.08) | 0.115 | |||
Weight | 1.07 | (0.95,1.20) | 0.268 | |||
Initial DR | 3.43e+ 11 | (0.02,7.69e+ 24) | 0.090 | 3.40e+ 11 | (0.05,2.37e+ 24) | 0.078 |
Duration between treatment onset and last follow-up | 1.20 | (0.95,1.51) | 0.130 | |||
Total hours of VB usage | 1.00 | (1.00,1.01) | 0.425 | |||
Vacuum pressure | 1.02 | (0.85,1.2) | 0.854 | |||
Times per day | 0.60 | (0.14,2.55) | 0.491 | |||
Hours of VB usage daily | 1.05 | (0.96,1.14,) | 0.263 | |||
Total days VB used | 1.00 | (0.99,1.01) | 0.894 |