. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: J Nutr Health Aging. 2017;21(5):487–491. doi: 10.1007/s12603-016-0775-1

Table 2.

Beta coefficients for c-reactive protein and interleukin-6 by DII quartiles using percentile regression

DII Quartiles	25^th Percentile	75^th Percentile	90^th Percentile
DII Quartiles	β (95%CI)	β (95%CI)	β (95%CI)
	C-reactive Protein (mg/L)

Quartile 2	0.17 (−0.57–0.91)	2.69 (1.02–4.36)	7.10 (1.45–13.74)
Quartile 3	0.29 (−0.25–0.83)	1.82 (−0.03–3.67)	3.99 (−0.54–8.52)
Quartile 4	0.58 (−0.40–1.57)	3.95 (1.71–6.19)	6.83 (1.11–12.55)

	Interleukin-6 (pg/mL)

Quartile 2	0.13 (−0.08–0.33)	0.12 (−0.60–0.83)	−0.14 (−1.42–1.14)
Quartile 3	0.33 (0.08–0.57)	0.71 (−0.20–1.62)	1.57 (−0.47–3.60)
Quartile 4	0.40 (0.09–0.70)	0.65 (−0.09–1.39)	0.76 (−0.60–2.13)

Adjustments: C-reactive protein = gender, insurance, perceived health, age, and the Multigroup Ethnic Identification Measure. Interleukin-6 = family history of diabetes, insurance, perceived health, and the number of self-reported chronic diseases.

Abbreviations: DII = Dietary Inflammatory Index; 95%CI = 95% confidence interval.