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  • 1
    Keywords: CANCER ; MODEL ; MODELS ; DIAGNOSIS ; DISEASE ; DISEASES ; HISTORY ; POPULATION ; RISK ; REDUCTION ; SKIN ; ASSOCIATION ; PROGRESSION ; LYMPHOMA ; AGE ; WOMEN ; case-control studies ; INDIVIDUALS ; asthma ; ATOPY ; case control study ; case-control study ; MEDICAL HISTORY ; SAN-FRANCISCO ; allergy ; hay fever ; non-Hodgkin lymphoma ; LEVEL ; pooled analysis ; BIRTH-ORDER ; USA ; CANCER INCIDENCE ; cancer research ; NON-HODGKIN-LYMPHOMA ; FRANCISCO BAY AREA ; HEMATOLOGICAL MALIGNANCIES ; ECZEMA ; CONFIDENCE-INTERVALS ; INTERLYMPH ; ALLERGIES ; CONFIDENCE
    Abstract: We performed a pooled analysis of data on atopic disease and risk of non-Hodgkin lymphoma (NHL) from 13 case-control studies, including 13,535 NHL cases and 16,388 controls. Self-reported atopic diseases diagnosed 2 years or more before NHL diagnosis (cases) or interview (controls) were analyzed. Pooled odds ratios (OR) and 95% confidence intervals (95% CI) were computed in two-stage random-effects or joint fixed-effects models, and adjusted for age, sex, and study center. When modeled individually, lifetime history of asthma, flay fever, specific allergy (excluding hay fever, asthma, and eczema), and food allergy were associated with a significant reduction in NHL, risk, and there was no association for eczema. When each atopic condition was included in the same model, reduced NHL risk was only associated with a history of allergy (OR, 0.80; 95% CI, 0.68-0.94) and reduced R-cell NHL risk was associated with history of hay fever (OR, 0.85; 95% CI, 0.77-0.95) and allergy (OR, 0.84; 95% CI, 0.76-0.93). Significant reductions in B-cell NHL risk were also observed individuals who were likely to be truly or highly atopic-those with hay fever, allergy, or asthma and at least one other atopic condition over their lifetime. The inverse associations were consistent for the diffuse large B-cell and follicular subtypes. Eczema was positively associated with lymphomas of the skin; misdiagnosis of lymphoma as eczema is likely, but progression of eczema to cutaneous lymphoma cannot be excluded. This Pooled study shows evidence of a modest but consistent reduction in the risk of B-cell NHL associated with atopy. [Cancer Res 2009;69(16):6482-9]
    Type of Publication: Journal article published
    PubMed ID: 19654312
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  • 2
    Keywords: BLOOD ; MODEL ; DISEASE ; RISK ; PATIENT ; ARTHRITIS ; RISK-FACTORS ; T cell ; T-CELL ; TYPE-1 ; ASSOCIATION ; DISORDER ; LYMPHOMA ; risk factors ; SWEDEN ; diabetes ; case-control studies ; CLUES ; MULTIPLE-SCLEROSIS ; FOLLICULAR LYMPHOMA ; INFLAMMATORY-BOWEL-DISEASE ; SYSTEMIC-LUPUS-ERYTHEMATOSUS ; DISORDERS ; case-control study ; MEDICAL HISTORY ; POPULATION-BASED COHORT ; PATTERN ; T-CELL LYMPHOMA ; rheumatoid arthritis ; RHEUMATOID-ARTHRITIS ; non-Hodgkin lymphoma ; analysis ; SUBTYPES ; CELIAC-DISEASE ; PARTICIPANTS ; multiple sclerosis ; pooled analysis ; USA ; CANCER INCIDENCE ; RISK-FACTOR ; B-CELL ; ANEMIA ; PERNICIOUS-ANEMIA ; systemic ; RATIO ; non Hodgkin lymphoma ; POOLED-ANALYSIS ; non-Hodgkin ; CONSORTIUM ; CONFIDENCE-INTERVALS ; MARGINAL ZONE LYMPHOMAS ; INTERLYMPH ; AUTOIMMUNE ; HEMATOPOIETIC CANCER ; hemolytic anemia ; PRIMARY SJOGRENS-SYNDROME ; systemic lupus erythematosus
    Abstract: Some autoimmune disorders are increasingly recognized as risk factors for non-Hodgkin lymphoma (NHL) overall, but large-scale systematic assessments of risk of NHL subtypes are lacking. We performed a pooled analysis of self-reported autoimmune conditions and risk of NHL and subtypes, including 29 423 participants in 12 case-control studies. We computed pooled odds ratios (OR) and 95% confidence intervals (CI) in a joint fixed-effects model. Sjogren syndrome was associated with a 6.5-fold increased risk of NHL, a 1000-fold increased risk of parotid gland marginal zone lymphoma (OR = 996; 95% CI, 216-4596), and with diffuse large B-cell and follicular lymphomas. Systemic lupus erythematosus was associated with a 2.7-fold increased risk of NHL and with diffuse large B-cell and marginal zone lymphomas. Hemolytic anemia was associated with diffuse large B-cell NHL. T-cell NHL risk was increased for patients with celiac disease and psoriasis. Results for rheumatoid arthritis were heterogeneous between studies. Inflammatory bowel disorders, type 1 diabetes, sarcoidosis, pernicious anemia, and multiple sclerosis were not associated with risk of NHL or subtypes. Thus, specific autoimmune disorders are associated with NHL risk beyond the development of rare NHL subtypes in affected organs. The pattern of associations with NHL subtypes may harbor clues to lymphomagenesis
    Type of Publication: Journal article published
    PubMed ID: 18263783
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  • 3
    Keywords: CANCER ; MODEL ; SUPPORT ; EPIDEMIOLOGY ; LONG-TERM ; RISK ; COMPONENTS ; ASSOCIATION ; NO ; LYMPHOMA ; WOMEN ; MEN ; OBESITY ; UNITED-STATES ; case-control studies ; ALCOHOL-CONSUMPTION ; nutrition ; B-CELL LYMPHOMA ; ONCOLOGY ; case-control study ; REGRESSION ; MALIGNANT-LYMPHOMA ; WEIGHT ; PHYSICAL-ACTIVITY ; HEIGHT ; non-Hodgkin lymphoma ; analysis ; diffuse large B-cell lymphoma ; SUBTYPES ; BODY-MASS INDEX ; pooled analysis ; OVERWEIGHT ; USA ; BMI ; RISK-FACTOR ; CANCER-RISK ; B-CELL ; ENGLAND ; RATIO ; non Hodgkin lymphoma ; EXCESS ; POOLED-ANALYSIS ; NO EVIDENCE ; non-Hodgkin ; CONSORTIUM ; nutritional status ; INTERLYMPH ; body mass index weight ; FORMER COLLEGE-STUDENTS ; LYMPHOHEMATOPOIETIC MALIGNANCIES ; SCANDINAVIAN MEN
    Abstract: Nutritional status is known to alter immune function, a suspected risk factor for non-Hodgkin lymphoma (NHL). To investigate whether long-term over, or under, nutrition is associated with NHL, self-reported anthropometric data on weight and height from over 10,000 cases of NHL and 16,000 controls were pooled across 18 case-control studies identified through the International Lymphoma Epidemiology Consortium. Study-specific odds ratios (OR) were estimated using logistic regression and combined using a random-effects model. Severe obesity, defined as BMI of 40 kg m(-2) or more, was not associated with NHL overall (pooled OR = 1.00, 95% confidence interval (CI) 0.70-1.41) or the majority of NHL subtypes. An excess was however observed for diffuse large B-cell lymphoma (pooled OR = 1.80, 95% CI 1.24-2.62), although not all study-specific ORs were raised. Among the overweight (BMI 25-29.9 kg m(-2)) and obese (BMI 30-39.9 kg m(-2)), associations were elevated in some studies and decreased in others, while no association was observed among the underweight (BMI 〈 18.5 kg m(-2)). There was little suggestion of increasing ORs for NHL or its subtypes with every 5 kg m(-2) rise in BMI above 18.5 kg m(-2). BMI components height and weight were also examined, and the tallest men, but not women, were at marginally increased risk (pooled OR = 1.19, 95% CI 1.06-1.34). In summary, whilst we conclude that there is no evidence to support the hypothesis that obesity is a determinant of all types of NHL combined, the association between severe obesity and diffuse large B-cell lymphoma may warrant further investigation. (C) 2007 Wiley-Liss, Inc
    Type of Publication: Journal article published
    PubMed ID: 18167059
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  • 4
    Keywords: CANCER ; MORTALITY ; RISK ; RISK-FACTORS ; HEALTH ; WOMEN ; case-control studies ; FOLLICULAR LYMPHOMA ; MEDICAL HISTORY ; MALIGNANT-LYMPHOMA ; non-Hodgkin lymphoma ; diffuse large B-cell lymphoma ; PREGNANCY ; REPRODUCTIVE HISTORY ; B-CELL ; JAPAN COLLABORATIVE COHORT ; hormonal contraceptives
    Abstract: Background The two most common forms of non-Hodgkin lymphoma (NHL) exhibit different sex ratios: diffuse large B-cell lymphoma (DLBCL) occurs more frequently in men and follicular lymphoma (FL) more frequently in women. Looking among women alone, this pooled analysis explores the relationship between reproductive histories and these cancers. Materials and methods Self-reported reproductive histories from 4263 women with NHL and 5971 women without NHL were pooled across 18 case-control studies (1983-2005) from North America, Europe and Japan. Study-specific odd ratios (ORs) and confidence intervals (CIs) were estimated using logistic regression and pooled using random-effects meta-analyses. Results Associations with reproductive factors were found for FL rather than NHL overall and DLBCL. In particular, the risk of FL decreased with increasing number of pregnancies (pooled OR(trend) = 0.88, 95% CI 0.81-0.96). FL was associated with hormonal contraception (pooled OR = 1.30, 95% CI 1.04-1.63), and risks were increased when use started after the age of 21, was used for 〈5 years or stopped for 〉20 years before diagnosis. DLBCL, on the other hand, was not associated with hormonal contraception (pooled OR = 0.87, 95% CI 0.65-1.16). Conclusions Hormonal contraception is associated with an increased risk of FL but not of DLBCL or NHL overall.
    Type of Publication: Journal article published
    PubMed ID: 22786757
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