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

Published in final edited form as: Mol Nutr Food Res. 2016 Nov 30;61(3):10.1002/mnfr.201600500. doi: 10.1002/mnfr.201600500

Table 3.

Odds ratios (ORs) of breast cancer and corresponding 95% confidence intervals (CIs) according to quintiles of dietary inflammatory index (DII), among 2569 cases and 2588 controls. Italy, 1991–1994.

	Cases/Cont rols ^a	DII quintiles, OR (95% CI)^b					p value for trend	p value for interacti on
	Cases/Cont rols ^a	−6.18, −2.13	−2.12,−1.09	−1.08,−0.04	−0.03, 1.28	1.28, 5.14	p value for trend	p value for interacti on
Age								0.62
<55 years	1242/1166	1 ^c	1.06 (0.82, 1.37)	1.38 (1.05, 1.81)	1.34 (1.01, 1.79)	1.76 (1.25, 2.47)	<0.001
≥55 years	1327/1422	1^c	1.67 (1.28, 2.16)	1.34 (1.02, 1.76)	1.48 (1.11, 1.98)	1.76 (1.28, 2.42)	0.01
BMI								0.38
<25kg/m²	1392/1345	1^c	1.20 (0.93, 1.54)	1.34 (1.03, 1.75)	1.40 (1.06, 1.86)	1.61 (1.16, 2.22)	0.002
≥25kg/m²	1170/1235	1^c	1.51 (1.15, 1.98)	1.39 (1.05, 1.85)	1.41 (1.05, 1.91)	1.90 (1.36, 2.66)	0.25
Parity								0.48
Nulliparous	401/380	1^c	1.31 (0.77, 2.22)	1.67 (0.98, 2.83)	1.44 (0.83, 2.52)	1.78 (0.96, 3.31)	0.04
Parous	2165/2206	1^c	1.34 (1.10, 1.63)	1.32 (1.07, 1.62)	1.44 (1.16, 1.80)	1.78 (1.39, 2.29)	0.10
Menopausal status								0.71
Pre/peri- menopause	987/842	1^c	1.08 (0.81, 1.45)	1.43 (1.05, 1.95)	1.48 (1.06, 2.06)	1.60 (1.08, 2.36)	0.52
Post-menopause	1579/1746	1^c	1.51 (1.19, 1.91)	1.34 (1.04, 1.72)	1.40 (1.08, 1.82)	1.85 (1.38, 2.48)	0.007
Family history of female-hormone related cancers								0.98
Yes	396/233	1^c	1.44 (0.82, 2.51)	1.37 (0.75, 2.49)	1.12 (0.61, 2.05)	1.85 (0.89, 3.81)	0.30
No	2173/2355	1^c	1.32 (1.08, 1.60)	1.34 (1.10, 1.65)	1.43 (1.15, 1.77)	1.74 (1.36, 2.23)	0.03
Energy intake^d								0.11
<2081 kcal	1405/1294	1^c	1.26 (0.98, 1.61)	1.17 (0.91, 1.50)	1.24 (0.96, 1.61)	1.25 (0.95, 1.64)	0.17
≥2081 kcal	1164/1294	1^c	1.12 (0.85, 1.47)	1.23 (0.94, 1.61)	1.27 (0.98, 1.64)	1.30 (1.01, 1.67)	0.03

The sum may not add up to the total because of some missing values.

Adjusted for quinquennia of age, study centre, energy intake, education, body mass index, parity, menopausal status and family history of hormone-related cancers, when appropriate.

Reference category.

Median energy intake among controls.