TABLE 3.
Frequency of Positive In Situ Ethidium Homodimer Staining in the Main Airway
| Locations and of Features of Staining | Citrate Buffer | C20 | C110 | 10 kDa PVP Buffer | P20 | 40 kDa PVP Buffer | P110 |
|---|---|---|---|---|---|---|---|
| Proximala points or branches along main airway | 0/2 | 3/3 | 1/3 | 1/2 | 1/3 | 1/2 | 2/3 |
| Medialb points of branches along the main airway | 2/2 | 3/3 | 3/3 | 2/2 | 3/3 | 2/2 | 3/3 |
| Distalc points or branches along main airway | 2/2 | 3/3 | 3/3 | 0/2 | 2/3 | 0/2 | 3/3 |
| Parenchyma | 0/2 | 3/3 | 2/3 | 0/2 | 1/3 | 0/2 | 2/3 |
| Patchy distribution | 2/2 | 2/3 | 2/3 | 0/2 | 3/3 | 0/2 | 3/3 |
| Areas with ≤5 positive cells | 2/2 | 3/3 | 3/3 | 1/2 | 3/3 | 1/2 | 3/3 |
| Areas with ≥6 positive cells | 0/2 | 3/3 | 1/3 | 1/2 | 0/3 | 1/2 | 0/3 |
TFN“a,b, and c” indicate reference points with respect to the head.