. 2009 May 20;90(1):177–183. doi: 10.3945/ajcn.2008.27268

TABLE 4.

Biochemical markers of nutritional status by dietary screening tool (DST) risk classifications for older adults residing in rural Pennsylvania¹

	At-risk group, DST score <60 (n = 58)	Possible-risk group, DST score 60–75 (n = 93)	Not-at-risk group, DST score >75 (n = 53)
Vitamin B-12 (pmol/L)	450 (373–527)^a	571 (511–631)^b	724 (641–806)^b
Folate (μmol/L)	24 (21–26)^a	28 (26–30)^b	29 (26–32)^b
Methylmalonic acid (μmol/L)	304 (261–346)^a	249 (217–281)^a	222 (178–266)^b
Homocysteine (μmol/L)	11.4 (10.4–12.4)^a	10.1 (9.3–10.9)^a	8.7 (7.7–9.8)^b
Lycopene (μmol/L)	0.51 (0.43–0.58)^a	0.59 (0.53–0.65)^a	0.62 (0.53–0.70)^b
β-Cryptoxanthin (μmol/L)	0.08 (0.06–0.10)^a	0.12 (0.10–0.14)^b	0.14 (0.12–0.17)^b
β-Carotene (μmol/L)	0.39 (0.26–0.53)^a	0.41 (0.30–0.51)^a	0.63 (0.48–0.79)^b
Lutein and zeaxanthin (μmol/L)	0.19 (0.14–0.24)^a	0.23 (0.19–0.27)^b	0.31 (0.25–0.36)^c

All values are means; confidence limits in parentheses. ANOVA models are adjusted for sex. Values in the same row with different superscript letters are significantly different, P ≤ 0.05 (ANOVA using a general linear model with Tukey-Kramer adjustment for multiple comparisons).