PGF and bronchiectasis: Multivariable analysis using the generalized linear model with Poisson regression was performed (Table 3), and the relative risks for NTM-LD were 1.636 (1.295–2.068) by sputum AFS titer (per 1 grade increment), 1.189 (1.010–1.399) by radiographic score (per 1 score increment), 1.048 (0.923–1.189) by VEGF/PlGF ratio (per 1 unit increment), and 2.212 (1.049–4.651) by the presence of a nodular-bronchiectasis pattern.