Impact of cumulative body mass index and cardiometabolic diseases on survival among patients with colorectal and breast cancer: a multi-centre cohort study

Table 1 Patient characteristics in colorectal and breast cancer cases

	Colorectal cancer				Breast cancer
	Total population		Deaths		Total population		Deaths
	n	%	n	%	n	%	n	%
Total	1045		509	48.7	1620		377	23.3
Person years [person years]	7571.6		1983.4		16,349.2		2779.7
Follow-up duration [years]^a	6.93 (2.83, 11.20)				10.38 (7.04, 13.14)
Female	461	44.1	211	45.8	1620	100.0	377	23.3
Male	584	55.9	298	51.0
Age at cancer diagnosis [years]^a	63.4 (59.0, 67.3)				60.6 (56.4, 64.8)
50–69	921	88.1	448	48.6	1523	94.0	350	23.0
> 70	124	11.9	61	49.2	97	6.0	27	27.8
Tumour stage at diagnosis
Localised	532	50.9	156	29.3	1032	63.7	152	14.7
Advanced	513	49.1	353	68.8	588	36.3	225	38.3
Predicted mean BMI [kg/m²]^a	25.3 (23.5, 27.4)				23.6 (22.1, 25.5)
< 25	480	45.9	232	48.3	1115	68.8	255	22.9
25–29.9	491	47.0	231	47.0	430	26.5	105	24.4
> = 30	74	7.1	46	62.2	75	4.6	17	22.7
Cardiometabolic disease	148	14.2	77	52.0	128	7.9	34	26.6
Myocardial infarction or stroke	57	5.5	29	50.9	39	2.4	15	38.5
Type 2 diabetes	104	10.0	54	51.9	92	5.7	21	22.8
Smoking
Never	396	37.9	189	47.7	936	57.8	180	19.2
Ever	649	62.1	320	49.3	684	42.2	197	28.8
Physical activity
Active	808	77.3	388	48.0	1249	77.1	291	23.3
Inactive	237	22.7	121	51.1	371	22.9	86	23.2
Alcohol consumption [g/day]^a	11.9 (3.7, 29.5)				5.3 (1.5, 11.3)
Education
Primary	498	47.7	240	48.2	747	46.1	165	22.1
Secondary	353	33.8	176	49.9	659	40.7	165	25.0
Tertiary	194	18.6	93	47.9	214	13.2	47	22.0
Country
Denmark	444	42.5	262	59.0	735	45.4	234	31.8
Germany	246	23.5	91	37.0	331	20.4	48	14.5
Italy	70	6.7	26	37.1	250	15.4	41	16.4
Spain	285	27.3	130	45.6	304	18.8	54	17.8

ISSN: 1471-2407