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Long-term patterns of fasting blood glucose levels and pancreatic cancer incidence

 NaNa Keum  ;  Kyoung Hwa Ha  ;  Ying Bao  ;  Moon Jae Chung  ;  Hyeon Chang Kim  ;  Edward L Giovannucci 
 CANCER CAUSES & CONTROL, Vol.29(1) : 135-142, 2018 
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Fasting blood glucose ; Hyperglycemia ; Pancreatic cancer ; Type 2 diabetes
BACKGROUND: Whether type 2 diabetes is cause or consequence, or both, of pancreatic cancer (PaC) remains unresolved. Leveraging repeated measurements of fasting blood glucose (FBG), we examined the temporal relationship between hyperglycemia and PaC incidence. METHODS: We conducted a nested case-control study of 278 cases and 826 matched-controls from the Korean National Health Insurance Service-Health Screening Cohort. Over 11 years before index date (date of PaC diagnosis for cases), all participants had at least one FBG measurement in each of the three time windows: - 11 to - 8, - 7 to - 4, and - 3 to 0 years. Using conditional logistic regression, we estimated odds ratios(ORs) of PaC and 95% confidence intervals (CIs) for hyperglycemia in the overall period and at each interval; for major long-term patterns of FBG across the three intervals (recent-onset, medium-term, and long-standing hyperglycemia). RESULTS: Higher FBG over the past 11 years was associated with an increased odds of PaC (p trend < .0001), with recent FBG more predictive of PaC than distant FBG. By FBG assessed in the - 3 to 0 interval, OR was 1.97 (95% CI 1.32-2.93) for 110-125 mg/dL and 3.17 (95% CI 2.09-4.80) for >/= 126 mg/dL. By long-term patterns of FBG, compared to consistent normoglycemia, OR was 2.02 (95% CI 1.24-3.31) for long-standing hyperglycemia and 3.38 (95% CI 1.87-6.13) for recent-onset hyperglycemia. These associations were more pronounced among never-smokers than ever-smokers (p interaction = .06). CONCLUSION: Recent-onset hyperglycemia may be an early manifestation of undetected PaC, while long-lasting hyperglycemia may serve as a moderate etiologic factor for PaC.
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1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Chung, Moon Jae(정문재) ORCID logo https://orcid.org/0000-0002-5920-8549
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