Table 1.

Baseline characteristics of NHS participants by alcohol intake in 1980 (n = 87,621)

Baseline alcohol intake
0 g/d0.1-14.9 g/d15-29.9 g/d30+ g/d
n (%)28,221 (32.2)48,891 (55.8)6,062 (6.9)4,447 (5.1)
Age (mean, y)46.946.347.248.2
Amount of alcohol intake (mean, g/d)0.05.020.941.6
Reported reduction in alcohol at baseline (%)10.310.48.28.3
Folate (μg/d)
    Total folate (mean)353.7351.5364.6358.3
    <350 (%)65.164.762.263.4
    ≥350 (%)34.935.337.836.6
Body mass index (kg/m2, mean)25.424.123.323.6
Smoking status* (%)
    Never57.740.627.218.6
    Past19.930.038.027.3
    Current22.429.534.954.1
Pack-years of smoking* (%)
    Mean pack-years9.011.415.123.9
    1-19 pack-years22.334.839.628.5
    20-39 pack-years14.318.524.230.9
    40+ pack-years5.76.29.122.0
Total fruit intake (servings/d, mean)2.22.12.01.6
Total calories (calories/d, mean)1,564.21,543.21,626.81,756.1
Multivitamin user (%)32.834.236.535.4
Married (%)92.391.190.088.4
Race (%)
    White82.886.187.483.3
    Black1.31.00.50.5
    Hispanic0.40.40.30.1
    Asian1.20.40.20.2
    Other14.212.111.715.9
  • *The smoking categories do not add up to the total due to missing values.