Table 1.

Characteristics of eligible CPS-II NC participants by quartile (Q4 vs. Q1) of ED, GL, and GI (n = 30,996)

EDGLGI
CharacteristicsQ1 (<1.28)Q4 (≥1.66)Q1 (<100.47)Q4 (≥126.82)Q1 (<50.43)Q4 (≥54.48)
Mean (SD) age (y)68.8 (6.3)67.9 (6.3)67.3 (6.1)69.0 (6.3)68.2 (6.2)68.1 (6.2)
Mean (SD) height (in)64.5 (2.6)64.6 (2.5)64.7 (2.5)64.4 (2.5)64.6 (2.6)64.4 (2.5)
Mean (SD) BMI (kg/m2)24.7 (4.4)26.0 (5.0)25.8 (4.8)24.7 (4.4)25.3 (4.6)25.4 (4.8)
Mean (SD) waist circumference (cm)82.8 (12.4)87.1 (13.0)85.6 (12.9)83.8 (12.8)84.3 (12.7)85.3 (12.8)
Mean (SD) adult weight gain (lbs)23.5 (25.4)32.9 (29.4)29.9 (27.4)25.1 (25.6)27.1 (27.0)29.1 (28.5)
Mean (SD) total energy (kcal/d)1,517 (450)1,716 (534)1,627 (505)1,585 (478)1,616 (498)1,587.7 (480)
Mean (SD) beverage energy (kcal/d)255 (151)259 (161)264 (169)263 (154)275 (164)239 (152)
Mean (SD) fat (% of energy)25.8 (5.8)34.3 (6.5)36.3 (6.4)23.7 (4.3)32.4 (7.6)27.9 (6.1)
Mean (SD) fiber (g/1,000 kcal/d)14.3 (3.1)8.8 (2.0)9.7 (2.5)12.9 (3.4)11.5 (3.5)10.9 (2.9)
Physical activity/week (% none)3.97.15.04.84.45.4
Education (% >HS)96.195.596.195.296.095.6
Race/ethnicity (% Caucasian)96.998.698.497.398.497.6
Age at menarche (% <12)79.783.58282.280.882.9
Age at menopause (% ≥50)71.867.868.970.170.169.1
HRT use (% current)3.42.93.43.33.62.9
Oral contraceptive use (% ever)38.739.546.234.340.839.1
Smoking (% current)2.58.37.83.04.85.2
Parity (% nulliparous)10.110.59.910.610.010.4
Family history (% yes)2.72.72.72.52.72.3
  • *Spearman correlation coefficients between total dietary ED with GL and GI were −0.20 and 0.31, respectively, and between GL and GI were 0.60. ED was calculated without beverages.