Table 2. Relationship between patient characteristics and %HA determined by quantitative CT analysis.
| %HA | ||
|---|---|---|
| ρ | p value | |
| Age, years | -0.16 | 0.267 |
| BMI, kg/m2 | -0.13 | 0.377 |
| Pack-years | -0.09 | 0.515 |
| FVC %pred., % | -0.53 | < 0.001 |
| FEV1%pred., % | -0.58 | < 0.001 |
| DLCO %pred., % | -0.46 | 0.004 |
| CPI | 0.60 | < 0.001 |
| KL-6, U/ml | 0.62 | < 0.001 |
| GAP stage | 0.51 | < 0.001 |
Data are presented as Spearman’s correlation coefficients. %HA = computed-tomography-derived %honeycombing area; BMI = body mass index; FVC = forced vital capacity; FEV1 = forced expiratory volume in 1 s; DLCO = diffusing capacity of the lungs for carbon monoxide; CPI = composite physiologic index; KL-6 = Krebs von den Lungen-6; GAP = gender, age, and physiology.