Table 2.
Characteristics of the Puerto Rican Health Study participants at baseline, n=1,446 1
| Participants by Baseline plasma PLP status | ||||||
|---|---|---|---|---|---|---|
| ≥30 nmol/L | <30 nmol/L | |||||
| n=1,011 | n=435 | |||||
| Mean | (±SD) | Mean | (±SD) | t-test | p-value | |
| Age in years | 57 | (±7.6) | 57 | (±7.4) | 0.43 | 0.67 |
| Body Mass Index (BMI) | 31 | (±6.3) | 33 | (±7.4) | −3.3 | <0.001 |
| Plasma vitamin B-12 | 561 | (±282) | 502 | (±278) | 3.7 | <0.001 |
| Plasma folate | 20 | (±8.9) | 16 | (±6.8) | 8.5 | <0.0001 |
| Plasma 25-hydroxyvitamin D (ng/mL) | 18 | (±8.1) | 16 | (±6.6) | 6.2 | <0.0001 |
| Energy adjusted magnesium diet intake, (mg) | 328 | (±72.8) | 314 | (±61.5) | 3.4 | <0.001 |
| Stressful life events | 8 | (±8.0) | 8 | (±7.9) | 0.8 | 0.41 |
| Perceived stress | 24 | (±9.2) | 24 | (±9.9) | −0.8 | 0.41 |
| Allostatic Load | 4 | (±1.9) | 5 | (±1.9) | −4.7 | <0.0001 |
| n | % | n | % | χ 2 | p-value | |
| Sex | 0.0003 | 0.99 | ||||
| Male-ref | 297 | 29% | 128 | 29% | ||
| Female | 714 | 71% | 307 | 71% | ||
| Education | 9.0 | 0.03 | ||||
| No schooling or <5th grade(ref) | 211 | 21% | 97 | 22% | ||
| 5th-8th grade | 250 | 25% | 113 | 26% | ||
| 9-th-12th grade | 376 | 37% | 177 | 41% | ||
| College/graduate | 174 | 17% | 48 | 11% | ||
| Smoking | 11 | 0.001 | ||||
| Never -Ref | 483 | 48% | 168 | 39% | ||
| Yes | 526 | 52% | 267 | 61% | ||
| Alcohol use | 6.6 | 0.04 | ||||
| Not currently drinking (ref) | 535 | 53% | 258 | 60% | ||
| Moderate (<=1 drink/d-Women; <=2 drink/d-Men) | 379 | 38% | 146 | 34% | ||
| Heavy (>1 drink/d-Women; >2 drink/d-Men) | 89 | 9% | 26 | 6% | ||
| Use of antidepressant medication | 5.0 | 0.03 | ||||
| No –Ref | 670 | 67% | 262 | 60% | ||
| Yes | 337 | 33% | 172 | 40% | ||
1
Not all categories add to n=1446 due to missing data in some variables (<1%)