Table 1.

Selected characteristics of colorectal adenoma cases and controls

Cases (n = 157), n (%)Controls (n = 191), n (%)
Age (y)
    30-4919 (12)49 (26)
    50-5941 (26)70 (37)
    60-6954 (34)36 (19)
    70-7943 (27)36 (19)
Sex
    Male77 (49)72 (38)
    Female80 (51)119 (62)
Race/ethnicity
    Caucasian141 (90)169 (88)
    Not Caucasian16 (10)22 (12)
BMI (kg/m2) in men (quartiles)
    <24.813 (17)18 (25)
    24.8-26.58 (11)18 (25)
    26.6-29.126 (34)18 (25)
    >29.129 (38)18 (25)
BMI (kg/m2) in women (quartiles)
    <23.220 (25)30 (25)
    23.2-26.627 (34)31 (26)
    26.7-30.113 (16)28 (23)
    >30.120 (25)30 (25)
Family history of colorectal cancer
    Absent91 (58)98 (51)
    Present66 (42)93 (49)
Smoking status
    Never65 (41)83 (43)
    Ever92 (59)108 (57)
NSAID use
    Never89 (57)110 (58)
    Ever68 (43)81 (42)
Physical activity (MET-h/wk) in men
    0-17.445 (58)35 (49)
    ≥17.532 (42)37 (51)
Physical activity (MET-h/wk) in women
    0-11.445 (56)59 (50)
    ≥11.535 (44)60 (50)
Menopausal status (among women)
    Premenopausal13 (16)39 (33)
    Postmenopausal67 (84)78 (67)
    Unknown2 (2)0 (0)
Postmenopausal hormone use*
    Never22 (33)22 (28)
    Ever44 (67)56 (72)
  • Abbreviation: MET, metabolic equivalent.

  • * Among postmenopausal women.