Insulin resistance/hyperinsulinemia and cancer mortality: the Cremona study at the 15th year of follow-up.
Type 2 diabetes is associated with risk of cancer. Hyperinsulinemia and insulin resistance may be the link with cancer, but whether this is independent of the diabetes status, obesity/visceral obesity and metabolic syndrome is uncertain and the present study wanted to address this issue. Fifteen-year all-cause, CVD and cancer mortality data were obtained through the Regional Health Registry in 2,011 out of 2,074 Caucasian middle-aged individuals of the Cremona Study, a population study on the prevalence of diabetes mellitus in Italy in which anthropometric and metabolic characteristics were collected. During the 15-year observation period, 495 deaths were registered: 221 CVD related and 180 cancer related. Age and sex were independently associated with all-cause, cancer and CVD mortality rates. Age- and sex-adjusted analysis showed that HOMA-IR, cigarette smoking and diabetes were independently associated with all-cause mortality; HOMA-IR, systolic blood pressure and fibrinogen were independently associated with CVD mortality; HOMA-IR and smoking habit were independently associated with cancer mortality. Individuals in the highest quintile of serum insulin had a 62% higher risk of cancer mortality (HR = 1.62 95% CI: 1.19-2.20; P < 0.0022) and 161% higher risk of gastrointestinal cancer mortality (HR = 2.61 95% CI: 1.73-3.94; P < 0.0001). Age- and sex-adjusted analysis showed that hyperinsulinemia/insulin resistance is associated with cancer mortality independently of diabetes, obesity/visceral obesity and the metabolic syndrome.
Division of Metabolic and Cardiovascular Sciences, Istituto Scientifico H San Raffaele, Milan, Italy. perseghin.gianluca@hsr.it
Gianluca
G
Perseghin
Giliola
G
Calori
Guido
G
Lattuada
Francesca
F
Ragogna
Erika
E
Dugnani
Maria Paola
MP
Garancini
Paolo
P
Crosignani
Marco
M
Villa
Emanuele
E
Bosi
Giacomo
G
Ruotolo
Lorenzo
L
Piemonti
D000368:Aged; D001786:Blood Glucose / Q000378:metabolism; D015331:Cohort Studies; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000453:epidemiology / Q000401:mortality; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006946:Hyperinsulinism / Q000150:complications / Q000453:epidemiology / Q000401:mortality*; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000502:physiology; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications / Q000453:epidemiology / Q000401:mortality*; D015995:Prevalence; D013997:Time Factors
D001786:Blood Glucose; D007328:Insulin