TABLE 1.
Characteristics of the study sample at baseline1
| Characteristics | Value |
|---|---|
| N | 3224 |
| Age, y | 54.5 ± 9.7 |
| Female, n (%) | 1734 (53.8%) |
| Education,2n (%) | |
| At most high school degree | 1110 (35.8%) |
| Some college or college graduate | 1987 (64.2%) |
| ApoE ε 4 positiveness,3n (%) | 643 (20.8%) |
| Total choline intake, mg/d | 324.5 ± 88.5 |
| Choline constituents, mg/d | |
| Phosphatidylcholine | 159.6 ± 52.4 |
| Free choline | 77.6 ± 22.5 |
| Glycerophosphocholine | 54.4 ± 20.9 |
| Phosphocholine | 14.2 ± 4.8 |
| Sphingomyelin | 18.6 ± 6.4 |
| Betaine, mg/d | 189.6 ± 82.7 |
| Methionine, g/d | 1.8 ± 0.6 |
| Vitamin B6, mg/d | 7.5 ± 15.0 |
| Vitamin B12, μg/d | 12.5 ± 15.0 |
| Folate intake, μg/d | 699.8 ± 335.3 |
| BMI, kg/m2 | 28.0 ± 5.0 |
| DGAI score | 60.4 ± 10.5 |
| Total energy, kcal/d | 1866.8 ± 492.4 |
| FSRP score,4 % | 5.5 ± 4.5 |
| Alcohol intake, g/d | 10.8 ± 14.0 |
| Current smoking, n (%) | 739 (23%) |
| Physical Activity Index score | 35.4 ± 4.8 |
1
Values are shown as mean ± SD or n (%). DGAI, Dietary Guidelines Adherence Index; FSRP, Framingham Stroke Risk Profile.
2
Education data were missing for 127 participants.
3
The apoE genotype was missing for 77 participants.
4
The FSRP score provides the estimated stroke risk over the subsequent 10-y period.