TY - JOUR
T1 - Emphysema scores predict death from COPD and lung cancer
AU - Zulueta, Javier J.
AU - Wisnivesky, Juan P.
AU - Henschke, Claudia I.
AU - Yip, Rowena
AU - Farooqi, Ali O.
AU - McCauley, Dorothy I.
AU - Chen, Mildred
AU - Libby, Daniel M.
AU - Smith, James P.
AU - Pasmantier, Mark W.
AU - Yankelevitz, David F.
PY - 2012/5
Y1 - 2012/5
N2 - Objective: Our objective was to assess the usefulness of emphysema scores in predicting death from COPD and lung cancer. Methods: Emphysema was assessed with low-dose CT scans performed on 9,047 men and women for whom age and smoking history were documented. Each scan was scored according to the presence of emphysema as follows: none, mild, moderate, or marked. Follow-up time was calculated from time of CT scan to time of death or December 31, 2007, whichever came first. Cox regression analysis was used to calculate the hazard ratio (HR) of emphysema as a predictor of death. Results: Median age was 65 years, 4,433 (49%) were men, and 4,133 (46%) were currently smoking or had quit within 5 years. Emphysema was identified in 2,637 (29%) and was a significant predictor of death from COPD (HR, 9.3; 95% CI, 4.3-20.2; P < .0001) and from lung cancer (HR, 1.7; 95% CI, 1.1-2.5; P =.013), even when adjusted for age and smoking history. Conclusions: Visual assessment of emphysema on CT scan is a significant predictor of death from COPD and lung cancer.
AB - Objective: Our objective was to assess the usefulness of emphysema scores in predicting death from COPD and lung cancer. Methods: Emphysema was assessed with low-dose CT scans performed on 9,047 men and women for whom age and smoking history were documented. Each scan was scored according to the presence of emphysema as follows: none, mild, moderate, or marked. Follow-up time was calculated from time of CT scan to time of death or December 31, 2007, whichever came first. Cox regression analysis was used to calculate the hazard ratio (HR) of emphysema as a predictor of death. Results: Median age was 65 years, 4,433 (49%) were men, and 4,133 (46%) were currently smoking or had quit within 5 years. Emphysema was identified in 2,637 (29%) and was a significant predictor of death from COPD (HR, 9.3; 95% CI, 4.3-20.2; P < .0001) and from lung cancer (HR, 1.7; 95% CI, 1.1-2.5; P =.013), even when adjusted for age and smoking history. Conclusions: Visual assessment of emphysema on CT scan is a significant predictor of death from COPD and lung cancer.
UR - https://www.scopus.com/pages/publications/84860556347
U2 - 10.1378/chest.11-0101
DO - 10.1378/chest.11-0101
M3 - Article
C2 - 22016483
AN - SCOPUS:84860556347
SN - 0012-3692
VL - 141
SP - 1216
EP - 1223
JO - Chest
JF - Chest
IS - 5
ER -