Table 1

Demographics at the time of the 1986 baseline survey. Iowa Women’s Health Study

Patients (n=158)Non-patients* (n=31178)
*Denominator as noted with the exception of missing data for race (346 non-patients), education (64 non-patients), and smoking (441 non-patients and four patients).
Age (years), mean (SD)61.1 (3.9)61.5 (4.2)
Body mass index (kg/m2), mean (SD)26.8 (4.6)26.8 (4.9)
White subjects (No (%))157 (99)30636 (99.4)
Education (%)
    <High school graduate23 (15)5351 (17.2)
    High school graduate72 (46)12997 (41.7)
    Vocational education/some college44 (28)8475 (27.2)
    ≥ College graduate19 (12)4291 (13.8)
Alcohol (%)
    Never use87 (55)17087 (54.8)
    <3 g/day26 (16)5754 (18.5)
    ≥3 g/day45 (28)8337 (26.7)
Smoking status (%)
    Never smoked88 (57)20593 (67.0)
    Former smoker32 (21)5968 (19.4)
    Current smoker34 (22)4176 (13.6)
Decaffeinated coffee consumption (%)
    None59 (37)13669 (43.8)
    ≤1 Cup/day44 (28)9653 (31.0)
    ≥2 Cups/day55 (35)7856 (25.2)
Comorbidities (%)
    Diabetes mellitus6 (4)1559 (5.0)
    Hypertension60 (38)10750 (34.5)
    Heart disease11 (7)2374 (7.6)
    Cancer10 (6)2652 (8.5)