Table 1

 Age, sex, disease status, and smoking data for cases and controls

Cases (n = 435): GA only (n = 106), CNV only (n = 261), mixed GA/CNV (n = 68)Controls (n = 280)
Mean age, years (SD)
    All subjects80.2 (7.0)75.6 (7.6)
    GA only81.2 (6.9)
    CNV only79.8 (7.1)
Sex
    Male200 (46.0%)116 (41.4%)
    Female235 (54.0%)164 (58.6%)
Smoking status
    Non-smoker159 (36.6%)111 (39.6%)
    Former243 (55.9%)152 (54.3%)
    Current33 (7.6%)17 (6.1%)
Mean length of time of smoking (years) (SD)
    Former32.5 (16.1)26.9 (14.4)
    Current57.9 (9.8)54.8 (10.3)
Mean pack years of cigarette smoking (SD)
    Former23.0 (18.2)16.0 (12.8)
    Current37.3 (14.6)36.4 (16.7)
Categorical pack years of cigarette smoking
    0159 (36.6%)111 (39.6%)
    0.1–20123 (28.3%)106 (37.9%)
    20.1–40100 (23.0%)49 (17.5%)
    >4053 (12.2%)14 (5.0%)
Categorical pack years of smoking other tobacco products
    0324 (74.7%)220 (78.9%)
    0.1–2099 (22.8%)51 (18.3%)
    20.1–408 (1.8%)4 (1.4%)
    >403 (0.7%) (1 missing data)4 (1.4%) (1 missing data)
Inhaled (former and current smokers)
    Not at all60 (21.8%)37 (21.9%)
    A little134 (48.7%)87 (51.5%)
    Deeply81 (29.5%) (1 missing data)45 (26.6%)
Years since quitting smoking
    None (current smoker)33 (7.6%)17 (6.1%)
    Less than 20 years72 (16.6%)36 (12.9%)
    20 years or more171 (39.3%)116 (41.4%)
    Non-smoker159 (36.6%)111 (39.6%)
Passive smoking exposure (non-smokers)
    No44 (27.8%)38 (34.5%)
    Yes114 (72.2%) (1 missing data)72 (65.5%) (1 missing data)