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  • 1
    Keywords: EPIDEMIOLOGY ; ATOPY ; MEDICAL HISTORY ; IMMUNE
    Abstract: We performed a pooled analysis of data on self-reported history of infections in relation to the risk of non-Hodgkin lymphoma (NHL) from 17 case-control studies that included 12,585 cases and 15,416 controls aged 16-96 years at recruitment. Pooled odds ratios (OR) and 95% confidence intervals (95% CI) were estimated in two-stage random-effect or joint fixed-effect models, adjusting for age, sex and study centre. Data from the 2 years before diagnosis (or date of interview for controls) were excluded. A self-reported history of infectious mononucleosis was associated with an excess risk of NHL (OR = 1.26, 95% CI = 1.01-1.57 based on data from 16 studies); study-specific results indicate significant (I(2) = 51%, p = 0.01) heterogeneity. A self-reported history of measles or whooping cough was associated with an approximate 15% reduction in risk. History of other infection was not associated with NHL. We find little clear evidence of an association between NHL risk and infection although the limitations of data based on self-reported medical history (particularly of childhood illness reported by older people) are well recognized.
    Type of Publication: Journal article published
    PubMed ID: 22266776
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  • 2
    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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  • 3
    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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  • 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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