Interstitial lung abnormalities and interstitial lung diseases associated with cigarette smoking in a rural cohort undergoing surgical resection

Table 1 Distribution of radiographic ILA and ILD patterns in the cohort (N = 352)

Variables	N (%)
1. ILA (any)	124 (35.2)
a. Centrilobular GGO	28 (8.0)
b. Subpleural reticular changes	52 (14.8)
c. Mixed a + b	26 (7.4)
d. Non-emphysematous cysts	28 (8.0)
e. Definite ILD	62 (17.6)
f. Combination other than c	14 (4.0)
2. ILD patterns (any)	62 (17.6)
a. UIP	2 (0.6)
b. Probable UIP	2 (0.6)
c. NSIP	3 (0.9)
d. RB-ILD	11 (3.1)
e. LCH	2 (0.6)
f. DIP	4 (1.1)
g. CPFE	11 (3.1)
h. OP	10 (2.8)
i. Unclassifiable	17 (4.8)

CPFE combined pulmonary fibrosis and emphysema, DIP desquamative interstitial pneumonia, GGO ground glass opacity, ILA interstitial lung abnormalities, ILD interstitial lung disease, LCH Langerhans cell histiocytosis, NSIP non-specific interstitial pneumonia, OP organizing pneumonia, RB-ILD respiratory bronchiolitis–interstitial lung disease, UIP usual interstitial pneumonia

ISSN: 1471-2466