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Table 1 Summary of subject demographics, smoking histories, spirometry and emphysema

From: Lung CD8+ T cells in COPD have increased expression of bacterial TLRs

Group S COPD p value
Subjects, n 14 20  
Sex ratio, M/F 11/3 12/8 NS
Age, years (SD) 62 (9) 62 (11) NS
Smoking, pack-years (SD) 60 (29) 62 (41) NS
Smoking status (Active/Former) 6/8 5/15 NS
FEV1,% pred (SD) 91 (16) 40 (27) <0.0001
Emphysema,% (SD) 12 (14) 36 (15) 0.02
Surgical indication (resection/LVRS/transplant) 14/0/0 8/5/7 0.001
ICS use (yes/no) 1/13 14/6 0.0004
Recent infection (yes/no) 0/14 2/18 NS
  1. Data are presented as average (SD), except for sex and smoking status ratios. Former smokers were defined as those subjects that had quit smoking for more than 6 months. Subjects were considered to have a recent infection if they had taken a course of antibiotics in the past 6 weeks. S, smoker without COPD; M, male; F, female; LVRS, lung volume reduction surgery; ICS, inhaled corticosteroids; NS, not significant.