Association of nutrition club membership with markers of health: a cross sectional study

BMC Public Health

Table 3 Nutritional markers^a

Geometric means and 95% CI	Club Members	Controls	P-value
α-tocopherol (μg/dL), serum	1275 (1202, 1354)	1157 (1090, 1229)	*0.009*
Serum Vitamin E: Total Cholesterol ratio	6.8 (6.5, 7.1)	6.0 (5.7, 6.3)	*<0.001*
Vitamin D 25(OH) (ng/dL), plasma^c	27.3 (25.1, 29.8)	23.2 (21.2, 25.2)	*0.001*
N (%) deficient vitamin D using IOM (20 ng/mL) cutpoint^b	13 (13.5%)	35 (36.5%)	*<0.001*

^aadjusted for site, current smoker (y/n), alcohol intake, dietary supplement use (defined as reported use of at least 1 to 3 times per week of the following:regular once-a-day, centrum etc. ., stress-tabs or B-complex vitamins, vitamin E or vitamin D)
^bnot adjusted; 96 pairs; deficient defined as <20 ng/mL, P-value from McNemar’s test
^c vitamin D analysis additionally adjusted for season; p-values from Type III fixed effects ANOVA from a linear mixed model with pair ID as a random effect to take into account the paired nature of the data; N = 92 pairs
Significant p-values are indicated by italicized numbers in bold

ISSN: 1471-2458