PMID- 23024033 OWN - NLM STAT- MEDLINE DCOM- 20130507 LR - 20220330 IS - 1097-0215 (Electronic) IS - 0020-7136 (Linking) VI - 132 IP - 9 DP - 2013 May 1 TI - Type 2 diabetes mellitus, insulin-use and risk of bladder cancer in a large cohort study. PG - 2186-91 LID - 10.1002/ijc.27878 [doi] AB - Type 2 diabetes mellitus (T2DM) is associated with increased bladder cancer incidence in some, but not all, studies. Many studies had limited statistical power and few examined risk by insulin-use, duration of diabetes or cancer stage. We examined the association between T2DM and bladder cancer incidence in the Cancer Prevention Study II Nutrition Cohort, a large prospective study with information on insulin-use and duration of diabetes. Diabetes and insulin-use were ascertained from a questionnaire at study enrollment in 1992 or 1993 and updated in 1997 and every 2 years thereafter. During follow-up through 2007, 1,852 cases of incident bladder cancer were identified among 172,791 participants. Multivariable adjusted relative risks (RRs) and 95% confidence intervals (CIs) were estimated using extended Cox regression modeling. There were no associations of T2DM with the risk of bladder cancer overall (RR = 1.01, 95% CI: 0.87-1.17), noninvasive disease (RR = 0.93, 95% CI: 0.76-1.14) or invasive disease (RR = 1.13, 95% CI: 0.91-1.40). Compared to participants without T2DM, risk of invasive bladder cancer was higher among participants who had had T2DM for >15 years (RR = 1.63, 95% CI: 1.09-2.43) and among those using insulin (RR = 1.64, 95% CI: 1.18-2.27). These results do not support an association of T2DM with overall bladder cancer incidence, but do suggest positive associations of long-term T2DM and insulin-use or other factors correlated with severe diabetes, with invasive bladder cancer incidence. CI - Copyright (c) 2012 UICC. FAU - Newton, Christina C AU - Newton CC AD - Epidemiology Research Program, American Cancer Society, Atlanta, GA 30303-1002, USA. christina.newton@cancer.org FAU - Gapstur, Susan M AU - Gapstur SM FAU - Campbell, Peter T AU - Campbell PT FAU - Jacobs, Eric J AU - Jacobs EJ LA - eng PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. DEP - 20121020 PL - United States TA - Int J Cancer JT - International journal of cancer JID - 0042124 RN - 0 (Hypoglycemic Agents) RN - 0 (Insulin) SB - IM MH - Aged MH - Diabetes Complications/epidemiology/*etiology MH - Diabetes Mellitus, Type 2/*complications/drug therapy MH - Female MH - Follow-Up Studies MH - Humans MH - Hypoglycemic Agents/*therapeutic use MH - Insulin/*therapeutic use MH - Male MH - Middle Aged MH - Prognosis MH - Prospective Studies MH - Risk Factors MH - Surveys and Questionnaires MH - Urinary Bladder Neoplasms/epidemiology/*etiology EDAT- 2012/10/02 06:00 MHDA- 2013/05/08 06:00 CRDT- 2012/10/02 06:00 PHST- 2012/07/31 00:00 [received] PHST- 2012/09/20 00:00 [accepted] PHST- 2012/10/02 06:00 [entrez] PHST- 2012/10/02 06:00 [pubmed] PHST- 2013/05/08 06:00 [medline] AID - 10.1002/ijc.27878 [doi] PST - ppublish SO - Int J Cancer. 2013 May 1;132(9):2186-91. doi: 10.1002/ijc.27878. Epub 2012 Oct 20.