Table 2 Positive Percent Agreement (PPA) and Negative Percent Agreement (NPA) of NVHO 2.5 OCT for detecting subretinal and intraretinal fluid versus commercial OCT imaging
From: Evaluation of a self-imaging SD-OCT system designed for remote home monitoring
Notal Box | Commercial OCT | PPA and NPA | ||
|---|---|---|---|---|
2.5 | Fluid | No Fluid | Total | (95% CI per binomial distribution) |
Presence of Fluid | ||||
Fluid | 213 | 9 | 222 | PPA: 213/217 = 98% (95.3, 99.5%) |
No Fluid | 4 | 237 | 241 | NPA: 237/246 = 96% (93.2, 98.3%) |
Total | 217 | 246 | 463 | |
Subretinal fluid | ||||
Fluid | 152 | 13 | 165 | PPA: 152/163 = 93% (88.2, 96.6%) |
No Fluid | 11 | 287 | 298 | NPA: 287/300 = 96% (92.7, 97.7%) |
Total | 163 | 300 | 463 | |
Intraretinal fluid | ||||
Fluid | 89 | 9 | 98 | PPA: 89/98 = 91% (83.3, 95.7%) |
No Fluid | 9 | 356 | 365 | NPA: 356/365 = 98% (95.4, 98.9%) |
Total | 98 | 365 | 463 | |