Table 4.

Odds ratios for high wholegrain bread high intake^* according to dietary factors in the Norwegian Women and Cancer study

	Age-adjusted model†		Energy-adjusted model‡
	OR	95 % CI	OR	95 % CI
Energy intake (kJ/d)
<5810	0·28	0·26, 0·30	–	–
5811–6984	1·00	Ref.	–	–
6985–8270	2·19	2·08, 2·31	–	–
≥8271	4·63	4·40, 4·87	–	–
P trend§ (P Wald test)	<0·001	(<0·001)	–	–
Cheese (g/d)
<10	1·00	Ref.	1·00	Ref.
11–19	1·17	1·10, 1·23	0·98	0·92, 1·04
20–36	1·57	1·49, 1·66	0·96	0·91, 1·02
≥37	3·14	2·99, 3·31	1·60	1·51, 1·69
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Milk (g/d)
0	1·00	Ref.	1·00	Ref.
1–209	0·95	0·91, 0·99	0·76	0·73, 0·79
≥210	1·21	1·16, 1·27	0·60	0·57, 0·63
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Yoghurt (g/d)
0	1·00	Ref.	1·00	Ref.
22	1·00	0·96, 1·05	0·77	0·74, 0·81
55	0·92	0·87, 0·96	0·61	0·58, 0·65
87	0·87	0·82, 0·92	0·55	0·51, 0·58
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Coffee (g/d)
0	1·00	Ref.	1·00	Ref.
1–542	0·90	0·84, 0·96	0·88	0·82, 0·95
≥543	1·08	1·01, 1·15	0·92	0·86, 0·99
P trend (P Wald test)	<0·001	(<0·001)	0·6	(<0·01)
Fruit (g/d)
<120	1·00	Ref.	1·00	Ref.
121–202	1·14	1·08, 1·19	0·88	0·83, 0·93
203–310	1·21	1·15, 1·27	0·75	0·71, 0·80
≥311	1·25	1·18, 1·31	0·61	0·57, 0·64
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Vegetables (g/d)
<95	1·00	Ref.	1·00	Ref.
96–147	1·10	1·05, 1·16	0·84	0·80, 0·89
148–216	1·14	1·09, 1·20	0·72	0·68, 0·76
≥217	1·09	1·03, 1·14	0·55	0·52, 0·59
P trend (P Wald test)	<0·01	(<0·001)	<0·001	(<0·001)
Fish and fish products (g/d)
<56	1·00	Ref.	1·00	Ref.
57–85	1·09	1·04, 1·15	0·80	0·76, 0·85
86–121	1·25	1·19, 1·32	0·71	0·67, 0·75
≥122	1·40	1·33, 1·47	0·53	0·50, 0·56
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Meat and meat products (g/d)
<74	1·00	Ref.	1·00	Ref.
75–105	1·07	1·02, 1·13	0·71	0·67, 0·75
106–139	1·24	1·18, 1·31	0·60	0·57, 0·64
≥140	1·37	1·30, 1·44	0·38	0·36, 0·41
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Sugar (g/d)
<13	1·00	Ref.	1·00	Ref.
14–20	1·19	1·13, 1·25	0·73	0·69, 0·77
21–30	1·30	1·23, 1·37	0·52	0·49, 0·55
≥31	1·91	1·82, 2·00	0·42	0·39, 0·45
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)
Alcohol (g/d)
0	1·17	1·11, 1·23	1·26	1·20, 1·33
0·1–3·0	1·00	Ref.	1·00	Ref.
≥3·1	0·82	0·79, 0·85	0·73	0·70, 0·76
P trend (P Wald test)	<0·001	(<0·001)	<0·001	(<0·001)

Ref., referent category.

^*Intake of standardized slices of wholegrain bread: high, ≥4 slices (n 16 729); low, <4 slices (n 52 742).

^†Adjusted by age and sub-cohort.

^‡Adjusted by age, energy intake and sub-cohort.

^§ P trend: trend across medians within each category.