Undiagnosed Diabetes in Breast, Colorectal, Lung, and Prostate Cancer: Incidence and Risk Factors

Table 3

Incidence of undiagnosed diabetes during 6-month period around cancer diagnosis.

	Overall		Type of cancer
			Breast		Colorectal		Lung		Prostate
	𝑁	%	𝑛	%	𝑛	%	𝑛	%	𝑛	%
	2,678	1.7	370	1.0	904	2.7	983	2.7	421	0.8
Age at diagnosis (years)
67–70	391	1.66	45	0.83	102	2.79	160	3.00	84	0.93
71–75	753	1.69	94	0.95	218	2.91	318	2.99	123	0.75
76–80	696	1.66	98	1.02	221	2.59	277	2.75	100	0.73
>80	838	1.87	133	1.19	363	2.73	228	2.35	114	1.08
Gender
Male	1,421	1.71	NI	NI	447	3.03	553	2.94	421	0.8
Female	1,257	1.76	370	1.02	457	2.50	430	2.54	NA	NA
Race/ethnicity
White	2,091	1.60	289	0.91	705	2.50	779	2.53	318	0.79
Black	300	2.68	50	2.44	94	4.36	109	4.18	47	1.07
Hispanic	144	2.02	15	1.41	49	4.15	45	4.56	35	1.64
Other	143	2.02	16	1.36	56	3.73	50	3.73	21	0.68
Year of diagnosis
1999	365	1.7	57	1.08	105	2.31	136	3.00	67	0.93
2000	746	1.7	91	0.88	251	2.59	275	2.64	129	0.94
2001	795	1.8	117	1.11	284	2.99	280	2.64	114	0.80
2002	772	1.8	105	1.04	264	2.85	292	2.86	111	0.77
Stage at diagnosis
In situ	77	0.91	22	0.39	55	1.99	NI	NI	NI	NI
I	669	1.24	110	0.67	215	2.94	200	2.25	NA	NA
II	501	1.89	144	1.36	282	2.95	26	2.11	NA	NA
III	602	2.60	38	2.05	227	3.15	314	2.69	NA	NA
IV	690	2.88	56	3.49	125	2.58	443	3.17	NA	NA
Localized	NA	NA	NA	NA	NA	NA	NA	NA	50	2.02
Distant	NA	NA	NA	NA	NA	NA	NA	NA	371	0.79
Percent in census tract with some college
<25%	1,087	2.02	151	1.26	374	3.11	397	3.13	165	0.96
≥25%	1,590	1.58	219	0.90	529	2.52	586	2.54	256	0.79
Percent in census tract living in poverty
<5%	Not shown
5–7%	323	1.51	49	0.91	105	2.29	118	2.49	51	0.76
8–12%	606	1.76	81	0.98	204	2.71	220	2.73	101	0.94
>12%	1,073	2.19	157	1.51	355	3.38	394	3.11	167	1.09
Missing	Not shown
Type of geographic area
Large metropolitan	1,513	1.75	204	0.99	512	2.79	566	2.86	231	0.83
Metropolitan	660	1.55	103	1.02	226	2.49	230	2.37	101	0.73
Urban	175	1.79	29	1.31	59	2.83	60	2.45	27	0.88
Less urban/rural	330	2.11	34	1.07	107	3.09	127	3.28	62	1.21

NI: not included in the study; NA: not applicable; not shown: one or more cells contained fewer than 11 observations.