Table 1

Characteristics of 242 young-adult women in the Richmond, CA cohort of the NHLBI Growth and Health Study, 1996–1997.

All
(n = 242)
 Blacks
(n = 155)
 Whites
(n = 87)

Mean
 SD
 Mean
 SD
 Mean
 SD
 p*
Systolic BP (mmHg)
 109.8
 10.3
 111.1
 10.8
 107.4
 9.0
 0.007
Diastolic BP (mmHg)
 66.9
 9.0
 67.4
 9.0
 66.1
 9.0
 0.31
Plasma vitamin C (mg/dL)†
 1.2
 0.5
 1.2
 0.4
 1.2
 0.6
 0.34
Age (yr)
 19.1
 0.6
 19.2
 0.7
 19.1
 0.6
 0.28
Weight (kg)
 70.9
 19.3
 71.2
 19.3
 70.4
 19.3
 0.74
BMI (kg/m2)
 26.1
 6.7
 26.4
 6.6
 25.7
 6.9
 0.40
Television or video watching (hr/wk)
 32.0
 24.1
 39.3
 23.9
 19.0
 18.4
 < 0.0001
Household income ($)‡
 20,000–29,999
10,000–19,999
30,000–39,999
< 0.0001
Total energy intake (kcal/d)
 1919.6
 787.2
 1985.8
 827.7
 1809.9
 706.4
 0.11
Total fat intake (gm/d)
 74.1
 36.8
 79.3
 36.2
 65.5
 36.2
 0.006
Dietary vitamin C intake (mg/d)**
Mean (median, 25th 75th %ile)
 121.7
(79.3)
 176.6
(38.9, 128.2)
 128.1
(80.0)
 203.4
(43.4, 126.1)
 111.1
(63.5)
 120.3
(31.0, 136.5)
 0.43

* P-values pertain to comparison between Blacks and Whites.

† Multiply by 56.8 to convert to SI units, μmol/L

‡ Household income values are the categories in which the median fell.

** Values in parentheses represent median (in the Means column) and 25th/75th percentiles (in the Standard Deviations column)

Block et al. Nutrition Journal 2008 7:35   doi:10.1186/1475-2891-7-35

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