From: Development of a nomogram for predicting the presence of combined pulmonary fibrosis and emphysema
Pulmonary function indexes (IQR) | All patients (N = 213) | CPFE (N = 85) | IPF (N = 128) | P value |
---|---|---|---|---|
RV (L) | 1.9 (1.6–2.3) | 2.1 (1.8–2.5) | 1.7 (1.4–2.1) | 0.000* |
RV%pred | 80.3 (69.8–93.5) | 82.2 (74.5–99.0) | 79.1 (65.2–90.5) | 0.042* |
VC (L) | 2.5 (1.9–3.0) | 2.9 (2.3–3.3) | 2.1 (1.6–2.7) | 0.000* |
VC%pred | 76.3 (66.7–87.2) | 81 (70.1–92.0) | 72.8 (64.2–85.1) | 0.028* |
VA (L) | 4.1 (3.2–5.0) | 4.8 (3.9–5.3) | 3.9 (2.8–4.7) | 0.000* |
VA%pred | 72.3 (63.1–82.3) | 76.4 (65.5–83.3) | 70.0 (59.8–79.1) | 0.118 |
TLC (L) | 4.3 (3.4–5.1) | 5 (4.1–5.5) | 3.9 (3.1–4.9) | 0.000* |
TLC%pred | 73.3 (65.1–80.6) | 77.8 (69.3–84.5) | 70.2 (61.0–77.8) | 0.002* |
FVC (L) | 2.4 (1.8–3.0) | 2.9 (2.3–3.2) | 2.1 (1.6–2.7) | 0.000* |
FVC%pred | 78.1 (67.8–88.4) | 81.5 (71.4–93.0) | 74.4 (65.5–83.1) | 0.013* |
FEV1 (L) | 1.9 (1.4–2.3) | 2.1 (1.7–2.5) | 1.7 (1.3–2.2) | 0.001* |
FEV1%pred | 79.0 (66.9–93.6) | 79.2 (69.3–91.1) | 79.0 (65–94.8) | 0.624 |
FEV1/FVC (%) | 82.1 (76.0–87.0) | 79.2 (71.5–84.1) | 84.4 (78.6–88.5) | 0.000* |
DLCO/VA (mol/min/kPa/L) | 1.2 (0.8–1.5) | 1.1 (0.8–1.4) | 1.3 (1.0–1.5) | 0.021* |
DLCO/VA%pred | 78.05 (63.35–97.75) | 76.3 (59.5–94.1) | 86.3 (69.6–98.5) | 0.066 |