Table 3.
Effect of Pulmonary Blood Volume, Pulmonary Blood Flow, Mean Transit Time, VDP, and TLCOz Score on RBC:M Tested Using Linear Mixed-Effect Model Analysis With a Random Intercept
| Independent Variable | Estimated Coefficient | P Value | Lower CI | Upper CI |
|---|---|---|---|---|
| Pulmonary blood volume (mL/100 mL) | 0.0016 | .002 | 0.0007 | 0.0025 |
| Pulmonary blood flow (mL/100 mL/min) | 0.00067 | .015 | 0.00014 | 0.00120 |
| Mean transit time (s) | 0.0082 | .076 | –0.00093 | 0.01729 |
| VDP (%) | –0.025 | .009 | –0.0427 | –0.007 |
| TLCOz score | 0.048 | < .001 | 0.027 | 0.069 |
M = membrane; RBC:M = RBC to membrane fraction; TLCO = transfer factor for carbon monoxide; VDP = ventilation defect percentage.