TABLE 4.

ORs and 95% CIs for associations between total dairy and specific dairy foods and breast cancer by ER status, Roswell Park Cancer Institute Data Bank and BioRepository, 2003–2014¹

		ER+ (n = 1293)		ER− (n = 205)
Servings/mo	Controls (n = 1202), n	n	OR (95% CI)	n	OR (95% CI)	P-heterogeneity
Total dairy						0.24
0–14	245	301	1.00	72	1.00
>14 to 28	250	326	1.11 (0.87, 1.42)	70	0.97 (0.66, 1.43)
>28 to 42	241	249	0.91 (0.70, 1.18)	64	0.99 (0.66, 1.46)
>42	466	417	0.82 (0.64, 1.04)	119	1.00 (0.68, 1.46)
Milk						0.04
0	322	355	1.00	76	1.00
>0 to 14	535	586	0.90 (0.74, 1.11)	142	1.03 (0.74, 1.42)
>14 to 28	172	178	0.87 (0.66, 1.14)	46	1.12 (0.74, 1.71)
>28	173	174	0.88 (0.67, 1.16)	61	1.58 (1.05, 2.37)
Yogurt						0.73
0	196	290	1.00	74	1.00
≤14	843	883	0.81 (0.66, 1.00)	218	0.72 (0.52, 0.98)
>14	163	120	0.65 (0.48, 0.89)	33	0.61 (0.38, 0.99)
Low-fat cheese						0.23
0	115	125	1.00	40	1.00
≤14	958	1062	1.06 (0.80, 1.40)	264	0.82 (0.55, 1.23)
>14	129	106	0.92 (0.63, 1.35)	21	0.54 (0.29, 0.99)
Other cheese						0.92
0	63	58	1.00	13	1.00
≤14	1034	1125	1.32 (0.90, 1.93)	283	1.31 (0.70, 2.42)
>14	105	110	1.56 (0.97, 2.50)	29	1.44 (0.68, 3.03)
Sweet dairy
0	41	56	1.00			0.01
>0 to 14	974	1074	0.82 (0.54, 1.26)	276	1.002
>14 to 28	136	124	0.68 (0.42, 1.11)	29	0.82 (0.53, 1.26)
>28	51	39	0.52 (0.29, 0.95)	20	1.55 (0.89, 2.70)

¹ORs and 95% CIs estimated with unconditional logistic regression while adjusting for age, race, BMI, menopausal status, energy intake, type of milk usually consumed (nonfat, low-fat, whole, or nondairy milk), cigarette smoking status, and family history of breast cancer. ER, estrogen receptor.

²Categories collapsed to 0–14, >14 to 28, and >28 for ER negative cancer.