Skip to main content

Table 1 Characteristics of study subjects

From: MicroRNA-181c inhibits cigarette smoke–induced chronic obstructive pulmonary disease by regulating CCN1 expression

  Never smokers Smokers COPD
Number 8 8 18
Gender (male/female) 4/4 7/1 16/2
Age (years) 63 (58–74) 66 (56–72) 67 (59–71)
BMI 28 (24–31) 27 (22–30) 21 (17–25)
Current-smoker/ex-smoker NA 6/2 11/7
Smoking history (pack-years) 0 38 (23–45) 50 (32–61)
FEV1 post-bronchodilator (L) 2.5 (2.1–2.7) 2.4 (1.8–2.5) 1.8 (1.5–2.2)
FEV1 post-bronchodilator (%predicted) 98 (85–108) 92 (82–101) 68 (60–77)
FEV1/FVC post-bronchodilator (%) 84 (75–88) 76 (70–79) 54 (51–61)
ICS (yes/no) 0/8 0/8 9/9