Noncutaneous and Cutaneous Cancer Risk in Patients With Atopic Dermatitis A Systematic Review and Meta-analysis

被引:32
|
作者
Wang, Lily [1 ]
Bierbrier, Rachel [2 ]
Drucker, Aaron M. [3 ,4 ]
Chan, An-Wen [3 ,4 ]
机构
[1] Univ Toronto, Fac Med, MD Program, Med Sci Bldg,One Kings Coll Circle, Toronto, ON M5S 1A8, Canada
[2] McGill Univ, Div Dermatol, Ctr Hlth, Montreal, PQ, Canada
[3] Univ Toronto, Dept Med, Div Dermatol, Toronto, ON, Canada
[4] Womens Coll Hosp, Womens Coll Res Inst, Toronto, ON, Canada
关键词
BASAL-CELL CARCINOMA; NON-HODGKINS-LYMPHOMA; ALLERGIC CONDITIONS; MEDICAL CONDITIONS; SQUAMOUS-CELL; LUNG-CANCER; NATIONWIDE COHORT; MULTIPLE-MYELOMA; PANCREAS CANCER; ACUTE-LEUKEMIA;
D O I
10.1001/jamadermatol.2019.3786
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
This systematic review and meta-analysis investigates the risk of noncutaneous and cutaneous cancers in patients with atopic dermatitis compared with the general population without atopic dermatitis. Question What is the risk of noncutaneous and cutaneous cancers in patients with atopic dermatitis (AD) compared with the general population? Findings This systematic review and meta-analysis included 8 population-based cohort studies (n = 5& x202f;726& x202f;692) and 48 case-control studies (n = 14& x202f;136). In population-based cohort studies, AD was statistically significantly associated with keratinocyte carcinoma (5 studies) and kidney cancer (2 studies), whereas case-control studies demonstrated lower odds of lung and respiratory system cancers (4 studies). Meaning Despite evidence suggesting potential associations between AD and the risk of some cancers, more research is needed to address heterogeneity and biases across existing studies to make definitive conclusions. Importance Impaired skin barrier and aberrant immune function in atopic dermatitis (AD) may alter immune response to malignant cancer. Conflicting data exist on the risk of cancer in patients with AD. Objective To assess the risk of noncutaneous and cutaneous cancers in patients with AD compared with the general population without AD. Data Sources Studies identified from searches of MEDLINE and Embase that were published from 1946 and 1980, respectively, to January 3, 2019. The following search terms were used: [(exp NEOPLASMS/ OR neoplas*.tw. OR tumo*.tw. OR cancer*.tw. OR malignanc*.tw.) AND (exp Dermatitis, Atopic/ OR (atopic adj1 (dermatit* or neurodermatit*)).tw. OR eczema.tw. OR disseminated OR neurodermatit*.tw.)]. Study Selection Included were observational studies (cohort and case-control designs) reporting a risk estimate for cancer in patients with AD compared with a control group (general population or patients without AD). Data Extraction and Synthesis Two independent reviewers extracted data and assessed the risk of bias using the Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) assessment tool, modified for observational exposure studies. Data were pooled using a random-effects model and expressed as standardized incidence ratios (SIRs) or odds ratios (ORs) with 95% CIs. Heterogeneity was assessed using the Cochrane Q statistic and the I-2 statistic. Main Outcomes and Measures The main outcome of the study was risk of cancer measured by SIRs or ORs. Results This systematic review and meta-analysis included 8 population-based cohort studies (n = 5& x202f;726& x202f;692 participants) and 48 case-control studies (n = 114& x202f;136 participants). Among cohort studies, a statistically significant association was found between AD and keratinocyte carcinoma (5 studies; pooled SIR, 1.46; 95% CI, 1.20-1.77) as well as cancers of the kidney (2 studies; pooled SIR, 1.86; 95% CI, 1.14-3.04), central nervous system (2 studies; pooled SIR, 1.81; 95% CI, 1.22-2.70), and pancreas (1 study; SIR, 1.90; 95% CI, 1.03-3.50). Among 48 case-control studies, pooled effects showed patients with AD had statistically significantly lower odds of central nervous system cancers (15 studies; pooled OR, 0.76; 95% CI, 0.70-0.82) and pancreatic cancer (5 studies; pooled OR, 0.81; 95% CI, 0.66-0.98), contrary to the higher incidence found in cohort studies. Case-control studies also demonstrated lower odds of lung and respiratory system cancers (4 studies; pooled OR, 0.61; 95% CI, 0.45-0.82). No evidence of association was found between AD and other cancer types, including melanoma. There was substantial heterogeneity between studies for many other cancers, which precluded pooling of data, and there was moderate to serious risk of bias among included studies. Conclusions and Relevance Observational evidence suggests potential associations between AD and increased risk of keratinocyte carcinoma and kidney cancer as well as lower odds of lung and respiratory system cancers. Further research is needed to address the heterogeneity and limitations of current evidence and to better understand the mechanisms underlying a possible association between AD and cancer risk.
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页码:158 / 171
页数:14
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